An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

The more you take me, the more you leave me behind.
Who Am I?

Why do you find that most of the buildings are deprived of the 13th floor?

Replace the question mark with the correct number in the below-given picture?

Before Mount Everest was discovered, what was the highest mountain in the world?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

I travel all around the world but always stay in the corner. What am I?

What do you get if you add 2 to 100 four times?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

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?