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?

Can you make a fire with just a single stick?

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

Solve the mathematical equation in the picture below.

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

What can you deduce from the following BrainBat?

CRY
LMKI

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?