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

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

John was piloting a plane behind a car but was never able to overtake it. Why?

What number do you get when you multiply all of the numbers on a telephone's number pad?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Find the hidden tiger in the given optical illusion ?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Find the missing letter in the last circle logically in the given below picture.

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?