What is the centre of gravity?

You can see three almost identical images below. Can you spot the odd one out from them?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

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?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?

What runs around the whole yard without moving?

There is a certain crime, that if it is attempted, is punishable, but if it is committed, is not punishable. What is the crime?

Can you spot the hidden girl in the picture below?

What famous saying does this rebus mean?

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