Railroad Crossing, look out for the cars. Can you spell that, without any R's ?
What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?
If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?
What goes up but never comes down?
What is at the end of a rainbow?
Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?
What will you call your mother's brother's brother-in-law?
It is deaf, Dumb and Blind!!! Still, always tells the truth. What is it?
Which five letter word can be added at the end of below word to form a valid word? > Pin > Check > Boiling > View
I taste better than I can smell. Who am I?
I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.