Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What brings you down but never up?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

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

Prove that the below maths equation is true.

8 + 8 = 91

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
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T O W E L
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