I am white when I am dirty, and black when I am clean. What am I?
Who is generally closer to the kids, mom or dad? (it's a funny riddle)
Find the hidden tiger in the given optical illusion ?
How many times can you subtract the number two from the number fifty?
What is at the end of a rainbow?
Why is Saturday stronger than Monday?
Why Wine Glass Stem is so long?
A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?
I have branches, but no fruit, trunk or leaves. What am I?
How many letters are in the alphabet?
I’m tall when I’m young, and I’m short when I’m old. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.