You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Which number should replace the question mark?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

What is the riddle which can be asked all day with a different correct answer each time.

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

What can you deduce from the following BrainBat?

CRY
LMKI

Solve the puzzle by telling what does below picture means.

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Which English verb becomes past tense just by rearranging the letters?