Solaris is brainstorming ways to improve his English. What does this mean? 

Solaris is trying to use 100% of his brain power to learn English. 

Solaris is trying to develop or think of new ideas to improve his English. 

Natasha is a bookworm. What does this mean? 

This means that Natasha loves to read a lot. 

This means that Natasha loves to buy books. 

Alex burns the midnight oil whenever he has exams. What does this mean?

This means that Alex uses an oil lamp because he wants to be eco-friendly.

This means that Alex stays up late to study.

One is never too old to learn. What does this mean? 

This means that no matter how old you are, you can still learn new things. 

This means that the older you get, the wiser you become. 

Dahlia passed her exams with flying colours. What does this mean? 

This means that Dahlia drew a very colourful picture for her art exams. 

This means that Dahlia did very well in her exams. 