Prove that twice of ten is the same as twice of eleven.

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

What do you see in the image below

Forwards I am heavy, backward I am not. What am I?

Can you find out the missing number in the grid?

Can you find out the remainder when 3^300 is divided by 5?

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

I travel all around the world but always stay in the corner. What am I?