A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

I am an odd number. Take away a letter and I become even. What number am I?

They are three errirs in this question. Can you find them?

People put me on the table and cut me but do not eat me. What am I?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

Make a sentence consisting of three words that have the whole alphabet.

Can you find a rabbit in the given picture?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?