Can you find out which number multiplied by itself will give the output as 12345678987654321?

What do you get if you add 2 to 100 four times?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

I have branches, but no fruit, trunk or leaves. What am I?

Before Mount Everest was discovered, what was the highest mountain in the world?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

Replace the question mark in the picture below.

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

Find the number of squares in the below-given picture.

I have eight fingers and two thumbs but I do not live. What Am I?