Find the number of squares in the below picture

There was a strange boy who was born before his father. How can this be possible?

81 x 9 = 801. What must you do to make the this equation true?

What is full of holes but still holds water?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

How many times do a clock's hands overlap in a day ?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?