Replace the question mark with the correct number in the below-given picture?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

How many squares, of any size, can you find on this chessboard which do not contain a Rook?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Which alphabet is a part of our body?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

A very interesting trivia question for all.

Why do men's shirts have their buttons on the right side and women's have buttons on the left-hand side?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)