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

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED

Rectify the following equality 101 - 102 = 1 by moving just one digit.

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Solve below rebus puzzle?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

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?