In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

In the image given, you can find several triangles. Can you count them all?

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

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?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Prove that the below maths equation is true.

8 + 8 = 91

What does it mean?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?