In which direction should the missing arrow point?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Buy me, smell me or deliver me, I do not change.

Who am I?

How many Watermelons are there in the below picture?

Replace the question mark in the picture below.

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

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

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What Adam and Eve do not have but the rest of the people have?