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

What word begins and ends with an E, but has only one letter?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Prove that the below maths equation is true.

8 + 8 = 91

What month of the year has 28 days?

What does this rebus puzzle means ?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

You knock a Table over in the library, and suddenly 20 eyes are looking at you.