No one wants to have it, but if one got it, he does not want to lose it. What is It?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

Take away the whole and some still remain. What is it?

What can jump higher than a building?

An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet.

How much time do you think the monkey will take to reach the top of the pole?

Complete the table series riddle by finding the number that can replace "??".

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?