Math Riddles Find the missing number: 3, 9, 27, 81, ____? | Puzzle answer Answer: 81 × 3 = 243 Solution: 81 × 3 = 243 Reveal Answer 187 23 Share with Facebook Comment You may also like.. Difficult Riddles What is bought by the yard by is worn by the foot? Answer: carpet Solution: Reveal Answer 0 0 Medium Riddles How do you make the number one disappear? Answer: Add the letter G and it’s “GONE”. Solution: Show Answer Add the letter G and it’s “GONE”. Reveal Answer 0 0 What am I ? I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. Answer: Human Solution: Reveal Answer 0 0 Classic Riddles Why is swearing like an old coat? Answer: Because it is a bad habit. Solution: Show Answer Because it is a bad habit. Reveal Answer 0 0 Difficult Riddles What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements? Answer: The Letter J. Solution: Reveal Answer 0 0 Previous Next Submit a Comment Cancel replyYour email address will not be published.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