Inventions and discoveries

A person who creates work of arts, paintings and drawings is called...

A building in which you can spend years without finding your way out.

Candles are made of it.

The synonym to ''not easy''

A person who is an expert in biology.

A physician is another word for a ....

....is the science of mental life which studies human and animal behaviour.

Create a noun from the verb "to develop"

The theory of relativity was developed by...

To make something fixed.