Math Riddles What did 2n-1 say to 2n? Answer: I can't even Solution: Reveal Answer 1 0 Share with Facebook Comment You may also like.. Medium Riddles I fly but I never land. What am I? Answer: Time. Solution: Show Answer Time. Reveal Answer 0 1 Medium Riddles What instrument can be heard but not seen? Answer: Your voice. Solution: Show Answer Your voice. Reveal Answer 2 0 Difficult Riddles What number has all letters in alphabetical order when spelled out? Answer: forty Solution: Reveal Answer 0 0 Medium Riddles What can run but can’t walk? Answer: A refrigerator Solution: Show Answer A refrigerator Reveal Answer 0 0 Medium Riddles How do trees surf the internet? Answer: They Log in! Solution: Show Answer They Log in! Reveal Answer 0 0 Previous Next Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name Email Website Save my name, email, and website in this browser for the next time I comment. Δ