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?
If 1+9+8=1, what is 2+8+9?
What do you think with the below Picture ?
What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?
A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?
A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?
It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?
On a magical land of Mexico , all the animal in the land are rational.
There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).
If we leave them for some time then how many goat and tiger will be there , when we come back ?
You see a boat filled with people, yet there isnâ€™t a single person on board. How is that possible?
One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?
I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?
Jigsaw puzzles soared in popularity during the great depression, as they provided a cheap, long-lasting, recyclable form of entertainment.