A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

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

What work can one never finish?

What is common among 11, 69, and 88?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

What time is it when an elephant sits on a fence?

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?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?