1. I keep secrets sealed until opened. What am I?
Answer: Envelope.

2. I travel far carrying words inside me. What am I?
Answer: Mail.

3. I close tight with glue but open with a tear. What am I?
Answer: Sealed envelope.

4. I’m thin, flat, and hold surprises. What am I?
Answer: Letter envelope.

5. I hide messages until someone opens me. What am I?
Answer: Enclosed note.

6. I’m addressed but not spoken to. What am I?
Answer: Addressed envelope.

7. I protect paper inside me from damage. What am I?
Answer: Protective sleeve.

8. I’m small, white, and often stamped. What am I?
Answer: Mailer.

9. I’m delivered to doors and dropped in boxes. What am I?
Answer: Postal letter.

10. I’m sealed with a lick or a sticker. What am I?
Answer: Sticky envelope.

11. I carry invitations to special days. What am I?
Answer: Invitation envelope.

12. I hide cards until someone opens me. What am I?
Answer: Greeting envelope.

13. I’m plain outside but meaningful inside. What am I?
Answer: Message holder.

14. I travel with stamps but never move myself. What am I?
Answer: Postbound envelope.

15. I hold money as a gift in some cultures. What am I?
Answer: Money envelope.

16. I fit in a mailbox with others like me. What am I?
Answer: Mail stack.

17. I contain clues in treasure hunts. What am I?
Answer: Clue envelope.

18. I’m torn open when excitement rises. What am I?
Answer: Tear-open mail.

19. I’m folded paper inside folded paper. What am I?
Answer: Double-fold letter.

20. I carry secrets and surprises alike. What am I?
Answer: Secret mailer.

21. I’m sent for holidays full of wishes. What am I?
Answer: Holiday envelope.

22. I stay flat unless stuffed. What am I?
Answer: Slim mailer.

23. I’m often opened with a letter opener. What am I?
Answer: Slit envelope.

24. I mark important documents with confidentiality. What am I?
Answer: Confidential envelope.

25. I wait in a mailbox until collected. What am I?
Answer: Waiting letter.

26. I’m delivered by hand sometimes. What am I?
Answer: Hand-delivered note.

27. I hide photos safely inside. What am I?
Answer: Photo envelope.

28. I can be padded for extra protection. What am I?
Answer: Padded mailer.

29. I carry documents across countries. What am I?
Answer: International envelope.

30. I arrive with a stamp from far away. What am I?
Answer: Foreign mail.

31. I hold bills nobody wants to open. What am I?
Answer: Billing envelope.

32. I bring good news in small packages. What am I?
Answer: Announcement envelope.

33. I hide keys to puzzles in games. What am I?
Answer: Puzzle clue envelope.

34. I can be colorful for special occasions. What am I?
Answer: Decorative envelope.

35. I’m left at doors with surprises inside. What am I?
Answer: Drop-off mail.

36. I protect artwork mailed carefully. What am I?
Answer: Art envelope.

37. I’m found in offices in bulk. What am I?
Answer: Office envelope.

38. I’m sealed tight for privacy. What am I?
Answer: Private mailer.

39. I can be transparent but still hold things. What am I?
Answer: Clear sleeve.

40. I carry small notes of appreciation. What am I?
Answer: Thank-you envelope.

41. I travel through mail slots silently. What am I?
Answer: Silent mail.

42. I keep tickets safe inside. What am I?
Answer: Ticket envelope.

43. I bring letters of love sealed with care. What am I?
Answer: Love envelope.

44. I hold secret missions in spy stories. What am I?
Answer: Mission envelope.

45. I protect fragile papers inside me. What am I?
Answer: Paper shield.

46. I can be reused when labeled again. What am I?
Answer: Reusable envelope.

47. I hold clues during escape rooms. What am I?
Answer: Challenge envelope.

48. I’m hidden under doors containing rent. What am I?
Answer: Rent envelope.

49. I arrive with golden wax on me sometimes. What am I?
Answer: Wax-sealed envelope.

50. I’m passed quietly between friends in class. What am I?
Answer: Secret note envelope.

51. I hide greeting cards until opened. What am I?
Answer: Card envelope.

52. I travel through sorting centers. What am I?
Answer: Sorted mail.

53. I hold printed invitations safely. What am I?
Answer: Invitation sleeve.

54. I keep report cards from peeking eyes. What am I?
Answer: Report envelope.

55. I seal shut with a firm flap. What am I?
Answer: Flap envelope.

56. I protect checks until delivered. What am I?
Answer: Check envelope.

57. I carry wedding invitations elegantly. What am I?
Answer: Wedding envelope.

58. I stand out with bright colors for festivals. What am I?
Answer: Festival envelope.

59. I’m delivered by couriers around the city. What am I?
Answer: Courier envelope.

60. I carry business documents formally. What am I?
Answer: Business envelope.

61. I hide exam results anxiously. What am I?
Answer: Results envelope.

62. I’m stuffed with pamphlets and brochures. What am I?
Answer: Information envelope.

63. I’m mailed with priority when urgent. What am I?
Answer: Priority mailer.

64. I’m left at reception desks with names written. What am I?
Answer: Reception envelope.

65. I hold raffle tickets for events. What am I?
Answer: Raffle envelope.

66. I’m sometimes brown and made of kraft paper. What am I?
Answer: Brown envelope.

67. I keep seeds safe for gardeners. What am I?
Answer: Seed envelope.

68. I hold clues for treasure hunts. What am I?
Answer: Hunt envelope.

69. I’m slipped under a hotel door quietly. What am I?
Answer: Hotel message envelope.

70. I can be large for documents. What am I?
Answer: Large envelope.

71. I carry photographs from studios. What am I?
Answer: Photo sleeve.

72. I have windows showing addresses. What am I?
Answer: Window envelope.

73. I hide receipts until needed. What am I?
Answer: Receipt envelope.

74. I contain numbered clues for mysteries. What am I?
Answer: Mystery envelope.

75. I’m used for giving small tips. What am I?
Answer: Tip envelope.

76. I’m handed to winners with prizes inside. What am I?
Answer: Prize envelope.

77. I secure ID documents when mailed. What am I?
Answer: Document envelope.

78. I hold tiny notes exchanged secretly. What am I?
Answer: Mini envelope.

79. I’m carried by postmen daily. What am I?
Answer: Postal envelope.

80. I’m stamped with urgency sometimes. What am I?
Answer: Urgent envelope.

81. I’m used for legal paperwork. What am I?
Answer: Legal envelope.

82. I hold delicate certificates. What am I?
Answer: Certificate envelope.

83. I travel across oceans in bags. What am I?
Answer: Overseas mail.

84. I contain handwritten letters lovingly. What am I?
Answer: Handwritten envelope.

85. I’m opened carefully to avoid ripping contents. What am I?
Answer: Gentle-open mail.

86. I’m used in schools for collecting forms. What am I?
Answer: School envelope.

87. I’m delivered with birthday wishes inside. What am I?
Answer: Birthday envelope.

88. I hide coupons for shopping. What am I?
Answer: Coupon envelope.

89. I’m hung on doors with surprises inside. What am I?
Answer: Hanging envelope.

90. I carry theater tickets safely. What am I?
Answer: Ticket holder envelope.

91. I come in bright colors for kids’ parties. What am I?
Answer: Party envelope.

92. I hide confetti until opened. What am I?
Answer: Confetti envelope.

93. I’m used to store passport photos. What am I?
Answer: Photo pouch.

94. I store tiny paper crafts neatly. What am I?
Answer: Craft envelope.

95. I hold clues for secret missions in games. What am I?
Answer: Game envelope.

96. I’m placed on desks with instructions inside. What am I?
Answer: Instruction envelope.

97. I carry thank-you cards to friends. What am I?
Answer: Gratitude envelope.

98. I’m often found in desk drawers waiting to be used. What am I?
Answer: Spare envelope.

99. I hold appointment reminders from clinics. What am I?
Answer: Reminder envelope.

100. I’m opened to reveal words, feelings, and messages. What am I?
Answer: Envelope.