A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Count the squares in the matchstick puzzle below?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

Can you identify the hidden rebus in the image below?

Replace the question mark with the correct number below.

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

What has no start, end, or centre?

Can you find out the missing number in the grid?