There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

What has one eye, but can’t see?

Can you solve the below tricky visual equation?

Why do Chinese men eat more rice than Japanese men do ?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

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

Can you count the number of children in the picture below

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?

How many bananas can you eat if your stomach is empty?