I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

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 ?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Whats the next number in the below number sequence pattern.

Can you solve below mathematical equation?

2^1234 - 2^1233

A man was convicted of a minor offence in Akbar court. Akbar decided to give him a chance. He asked him to give a statement. If the statement is true, he will be killed by lions and if it is false, he will be killed by trampling of wild elephants.

The convicted person requested help from Birbal and since the crime was not a big one, Birbal decided to help him. Whatever Birbal suggested impressed Kabir and he let the convicted person go.

What did Birbal suggest to the person?