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?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

I shave every day, but my beard stays the same. What am I?

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

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.

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

I don't get anymore wetter, no matter how much rain falls on me.