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?

How can you make number one disappear by adding something to it?

All Marigolds are flowers.
Few Flowers are used to make colors.
Therefore, some Marigold are used to make colors.

True Or False?

Can you make a six-letter word using the letters N, A and B ?

When is the top of a mountain similar to a savings account?

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

What does Alexander the Great and Winnie the Pooh have in common?

What does this rebus means ?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain