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

Prove that the below maths equation is true.

8 + 8 = 91

Can you solve below mathematical equation?

2^1234 - 2^1233

What is the longest word in the dictionary?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

what does this picture(rebus) riddle means ?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Can you write down eight eights so that they add up to one thousand?

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 ?