What is harder to catch the faster you run?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Why Aeroplane windows are round?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

Prove that the below maths equation is true.

8 + 8 = 91

What happened when the wheel was invented?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

O_er_t_o_

Complete the missing letters of the given word.

I can write cow in 13 letters.

Can You?