I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

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

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?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

How is the moon similar to a dollar?