Which number should replace the question mark?

A Car driver was heading down a street in Washington. He went right past a stop sign without stopping, he turned left where there was a 'no left turn' sign and he went the wrong way on a one-way street. Then he went on the right side of the road past a cop car. Still, he didn't break any traffic laws. Why not?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Which of the below owl is odd one out?

There is something which is always coming but never arrives?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

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

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?