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 the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

There are forty elephants and they have forty-fore heads. How can this be possible?

Find the number of squares in the below picture

What's the only room from which no one can enter or leave

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

If eleven plus two equals one, what does nine plus five equal?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?