What four weights can be used to balance from 1 to 30 pounds?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

Can you place three balls such that the equation shown in the picture holds true?

Can you find a rabbit in the given picture?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

I add 5 to 9 and get 2. The answer is correct, so what am I?