You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

By what process could you make a 'Tea-Table' into food?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

Can you name some countries which do not have the alphabet 'A' in them?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

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?