I have eight fingers and two thumbs but I do not live. What Am I?

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?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

A bomb exploded in a room full of married couples and no one died. How?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

If two's company, and three's a crowd, then whats four and five ?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

What does below Rebus say?

XLR8