What is the fastest way to double your money?

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?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

1. Where does Easter come from before Valentine's Day?

2. Do you know what is in the middle of Valentine's?

3. What did the lady bee say to the man bee on the occasion of Valentine's Day

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

Identify the 10 differences between the two given pictures.

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

What makes this number unique: 8,549,176,320?

What does this below rebus puzzle mean?