You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

What can you see in the middle of March and April that you can never see in any other month?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

Find out which of the given views in the picture is accurately the top view of the given pyramid.

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

Which is faster, Heat or Cold ? Explain.

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

I know a nine-letter word having only one vowel.
Do you ?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?