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

Akbar summoned Birbal out of anger.
He told him that he will have to face death.
He asked him to make a statement and if the statement is true he will be buried alive and if the statement is false, he will be thrown at lions.
After hearing Birbal’s statement, Akbar could do nothing but smile.
He gave him 5 gold bars and let him go.

What did Birbal say?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

What number when divided in half becomes zero?

Who is that with a neck and no head, two arms and no hands? What is it?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

Find out the number of circles in the given picture having Illusion

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()