Why do people go to bed?

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?

I look at you, you look at me I raise my right, you raise your left. What am I?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

How do you go from 98 to 720 using just one letter?

Which country gets ill every time?

Which number should replace the question mark?

You need to arrange three 7 and mathematical symbols to form number 1?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?