If it took eight men ten hours to build a wall, how long would it take four men to build it?

Solve the equation in the image by looking at the pattern closely.

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?

Give it food and it will live; give it water and it will die.

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

What English word has three consecutive double letters?