### What is always in front of you but cannot be seen?

Do you want to exercise your mind with this riddle? Let's have some fun for a moment. You can check the hint and answer below.

**29 liked this**

**36 solved this**

### Rhind Papyrus - 27

Nice activity for maths' history, fractions and equations. The idea is read only the text... because the point is just think and write the equation.

**12 liked this**

**20 solved this**

### Rhind Papyrus - 26

Funny way to introduce maths' history and to look back to fractions and equations.

**5 liked this**

**10 solved this**

### Rhind Papyrus - 25

This is an old problem, which could be use to explain some maths' history, fractions and equations. The point is just think and write the equation. Solving is easy.

**7 liked this**

**21 solved this**