1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

A dying old man wants to divide his entire land between his only two sons. Since his only wish is to treat them as equal as both of them have been too good to him, he wants to divide his land equally between them. The problem is that the land is significantly irregular in shape and thus there is no choice of cutting them into two equal halves.

Can you help him divide the land in a manner that both of his sons will be happy?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

Can you decipher the two rows to find the hidden word?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?