There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Replace the question mark with the number below given a simple math problem.

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?

Identify the 10 differences between the two given pictures.

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

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

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?