P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?
Which is heavier: a ton of bricks or a ton of feathers?
What runs around the whole yard without moving?
There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes
There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?
1. Where does Easter come from before Valentine's Day? 2. Do you know what is in the middle of Valentine's? 3. What did the lady bee say to the man bee on the occasion of Valentine's Day
How many pluses should we put between the digits of 987654321 to get a total of 99, and where?
What is the next number in this matchsticks series riddle?
What 5-letter word typed in all capital letters can be read the same upside down?
If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?
How many triangles can you find in this given picture?
The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.