Using Only Five 5's and any mathematical operator make sum as 37

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

What has 88 keys?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

It is a 5 letter word if you take away first letter it is something you get from sun, if you remove second letter you will get something to eat, if you remove third letter you get a word you use in pointing at and if you remove the fourth letter you get something to drink. What is it?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Why are televisions attracted to people?

There is something which you can be arrested for attempting but not for successfully completing.

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.