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?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

When it's bad luck to meet a black cat?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Why is the Hole below a Lock?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?