I make two people out of one. What am I?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

No matter how little or how much you use me, you change me every month. What am I?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

John needs to purchase 100 chocolates from three different shops and he has exactly 100 rupees to do that which he must spend entirely. He must buy at least 1 Chocolate from each shop.

The first shop is selling each chocolate at 5 paise, the second is selling at 1 rupee and the third is selling at 5 rupees.

How many chocolates should he buy from each shop?

When it is alive we sing, when it is dead we clap our hands. What is it?

When can we add 2 to 11 and get 1 as the correct answer?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?