It can't be seen, can't be felt, can't be heard, and can't be smelt. It lies behind stars and under hills, And empty holes it fills. It comes first and follows after, Ends life, and kills laughter. What is it?
Give it food and it will live; give it water and it will die.
If one and a half boys, eat one and a half burgers in one and a half hours. How many burgers can 9 boys eat in 3 hours?
It begins where the time ends. Its second is an expression of surprise. Its third is a question. Its fourth is urinate. It ends with a drink. Which country it is?
By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"
What can you deduce from the following BrainBat? CRY LMKI
What is more useful when it is broken?
What can you catch but never throw?
How do you go from 98 to 720 using just one letter?
You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?
A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.