GROUP 1
Cold feet
Becoming nervous
Let sleeping dogs lie
To stop discussing something that is already over or sorted out
Worth its weight in gold
To be highly valuable
Cost an arm and a leg
Used to refer to something that is extremely expensive
Hit the nail on the head
To do something the exact way in which it should be done / Also refers to giving a direct answer
It’s not rocket science
Not that difficult to comprehend
On thin ice
Used to refer to a sensitive scenario or a person who is in trouble
See eye to eye
Have the same opinion or have the same point of view
Grass is greener on the other side
Never being satisfied with what one gets
Put something on ice
To hold off something