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?

what does this below rebus represent identXQQQQQME

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Which is the smallest number that you can write using all the vowels exactly once?

When 99 is considered higher than 100?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

Can it be possible to build a house that has all its four walls facing towards the South?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

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

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???