Why is it very easy to weigh a fish?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

What number do you get when you multiply all of the numbers on a telephone's number pad?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

By using 'because' continuously three times, can you make an English statement ?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?