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?

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?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

Look at the picture and find out which square is not linked with any of the other squares.

What number should come in place of the question mark below?

What is the next number in this matchsticks series riddle?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

How can you make number one disappear by adding something to it?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?