In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

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?

What can go up a chimney down, but can’t go down a chimney up?

What country can make you shiver?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

What has one letter and starts with an E?

Be active and find the killer in the picture Riddle below.

Decode this picture on T-Shirt and tell what it says ?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

What is black when you buy it, red when you use it, and gray when you throw it away?