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?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

If eleven plus two equals one, what does nine plus five equal?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

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

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?