What has a ring but no finger?

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

Find the hidden tiger in the given optical illusion ?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

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 does the below rebus riddle means?

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

what's the probability of getting a king or a queen from a pack of 52 cards?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?