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

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

Can you solve this picture maths equation?

What has to be broken before you can use it?

I am white when I am dirty, and black when I am clean. What am I?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?

Why 1729 is a magic number? Answer Logically.

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.

But do you know how many of these numbers are prime?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.