What country can make you shiver?

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?

There are hundred red gems and hundred blue gems. The blue gems are priceless while the red gems equal wastage. You have two sacks one labeled Heads and the other Tails. You have to distribute the gems as you want in the two sacks. Then a coin will be flipped and you will be asked to pick up a gem randomly from the corresponding sacks.

How will you distribute the gems between the sacks so that the odds of picking a Blue gem are maximum?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Can you find the six hidden animals in the picture below?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Count the number of triangles in the given picture.

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

What number do you get when you multiply all of the numbers on a telephone's number pad?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?