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

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

Which is the rope you never skip with?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

Move three sticks of the spiral below to form a square.

Find the hidden panda in the image below.