What is full of holes but still holds water?

What 5-letter word typed in all capital letters can be read the same upside down?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Move four matchsticks to the below square to form three squares?

Can you replace the question mark with the correct number in the below table sequence?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

Why do people go to bed?

If 1+9+8=1, what is 2+8+9?

You need to arrange three 7 and mathematical symbols to form number 1?