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?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

Can you write down eight eights so that they add up to one thousand?

Find the value of "a" by solving the maths equation in the picture below:

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

What number divided by 4 is the same as that number minus 4?