1. The idiom "Hit the nail on the head" means?

2. The idiom "Call it a day" means?

3. The idiom "Cry over spilt milk" means?

4. The idiom "Let the cat out of the bag" means?

5. The idiom "Burn the midnight oil" means?

6. The idiom "Break the ice" means?

7. The idiom "Once in a blue moon" means?

8. The idiom "Jump on the bandwagon" means?

9. The idiom "By hook or by crook" means?

10. The idiom "Cost an arm and a leg" means?

11. The idiom "Add fuel to the fire" means?

12. The idiom "Go the extra mile" means?

13. The idiom "Hang in there" means?

14. The idiom "Burn one’s fingers" means?

15. The idiom "A blessing in disguise" means?

16. The idiom "Bite the bullet" means?

17. The idiom "Beat around the bush" means?

18. The idiom "A piece of cake" means?

19. The idiom "On cloud nine" means?

20. The idiom "Hit the sack" means?