I look at you, you look at me I raise my right, you raise your left. What am I?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

10+10 and 11+11 can give you the same answer.

Explain how?

You are a thief and you are being punished for your crime. People have tied your head down on a tree with a rope that has been anchored in the ground. A candle is burning below the rope which is slowly burning it away. Just below your head, a Lion has been left loose and is waiting for you to drop down on the ground so he can have you as his lunch.

You have to survive the scenario. How will you do it?

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

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

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