A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

John bought a new car. He has a habit of eating ice cream from a particular ice cream shop while returning home from office. Whenever, he eats strawberry ice cream, he faces no problem. But whenever, he eats chocolate ice cream, the car starts giving problem. At first, he thinks, it is just a co-incidence but when this awkward incident happens for 3-4 times, he reports this problem to the company.

The mechanic of the company checks but finds no problem at all. The next day, when he stops by to eat chocolate ice cream, the car again starts giving problem.

Can you find the possible reason?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

You need to arrange three 7 and mathematical symbols to form number 1?

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

I have branches, but no fruit, trunk or leaves. What am I?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

I am an odd number. Take away a letter and I become even. What number am I?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?