81 x 9 = 801. What must you do to make the this equation true?

What is the fastest way to double your money?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

How can you write nineteen in a manner that if we take out one, it becomes twenty?

John was drowned by he was not wet. How?

10+10 and 11+11 can give you the same answer.

Explain how?

Can you solve the maths in the below-given picture equation?