Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Do you know who was buried in John's tomb?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

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

Who am I?

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?

Prove that the below maths equation is true.

8 + 8 = 91

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

John walks into the daily grocery shop and steals a $100 bill from the shop. An hour later John returns to the shop and buys some daily products for $40. John pays the owner the $100 bill and therefore the owner returns him $60.

How much money did the owner lose?

By what process could you make a 'Tea-Table' into food?

Why Aeroplane windows are round?