I always drive my customer away.

Who am I?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

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?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Take one out and scratch my head, I am now black but once was red. What am I?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?