Take a look at these idioms; they all use numbers.
1. All in one piece
E.g. He got home from the party all in one piece.
2. Back to square one
Meaning: Back to the start
E.g. The project failed, we’re back to square one.
3. Have one too many
Meaning: Drink too much alcohol
E.g. I can’t drive, I had one too many.
4. On cloud nine
Meaning: Very happy
E.g. When my mom bought me a computer, I was on cloud nine.
5. One for the road
Meaning: Have a drink before leaving
E.g. Let’s have one for the road!
6. Six feet under
Meaning: Dead and buried
E.g. I’m going to be six feet under by 2100.
7. Ten to one
Meaning: Something very likely
E.g. Ten to one I’m going to win.
8. Kill two birds with one stone.
Meaning: Solve two problems with one move
E.g. I’ll drop you off on the way to work, we’ll kill two birds with one stone.
9. A million and one
Meaning: Very many
E.g. I have a million and one ideas.
10. Put in one’s two cents
Meaning: Say your opinion
E.g. I put in my two cents at the meeting.
11. Cast the first stone
Meaning: To be the first to criticize or attack someone
E.g. OK,fine, I’ll cast the first stone—that movie was awful!
12. Get the third degree
Meaning: To be questioned in great detail about something
E.g. My boyfriend isso controlling that I always get the third degree if I goanywhere or see anyone without him.
13. Be in two minds (about something)
Meaning: To not be certain about something, or to have difficulty in making a decision
E.g. I’m in two minds about accepting the job.
14. Nine times out of ten
Meaning: Almost always
E.g. Nine times out of ten your first choice turns out to be the right one.
15. Nine-to-five job
Meaning: A routine job in an office that involves standard office hours
E.g. I wouldn’t want a nine-to-five job.
16. Six feet under
Meaning: Dead and buried
E.g. They put him six feet under two days after he died.
17. Stand on one’s own two feet
Meaning: To be independent and self-sufficient
E.g. He never left home after high school, so he never learned to stand on his own two feet.
18. Take five
Meaning: To take one brief (about five minutes) rest period
E.g.To take a short break, about five minutes. I’ve been painting all morning, can I please take five?
19. Two peas in a pod
Meaning: Two people who are very similar in appearance
E.g. They’re like two peas in a pod, of course they’re married!
20. It takes two to tango
Meaning: You say this when you think that a difficult situation or argument cannot be the fault of one person alone.
E.g. Your son blames mine for their fight at school, but it generally takes two to tango.
21. Never in a million years
Meaning: Absolutely never
E.g. Never in a million years did I think that I would actually win the lottery!
22. Dressed up to the nines
Meaning: Someone is wearing very smart or glamorous clothes
E.g. I have to be dressed to the nines at this gala tonight—a lot of important people will be there.
23. Be in seventh heaven
Meaning: Extremely happy
E.g. I’ve been in seventh heaven ever since I got engaged!
24. At sixes and sevens
Meaning: Someone is in a state of confusion or not very well organized.
E.g. I’m at sixes and sevens now that the whole schedule has been rearranged.
25. Have one over the eight
Meaning: A person is slightly drunk.
E.g. From the way he was walking it was obvious he’d had one over the eight.
26. At the eleventh hour
Meaning: It happens when it is almost too late.
E.g. I was shocked that they reached an agreement at the eleventh hour after weeks of squabbling.
27. On all fours
Meaning: You are down on your hands and knees.
E.g. I got down on all fours trying to find my ring in the sand.
28. Feel like a million dollars
Meaning: To feel great, to feel well and healthy.
E.g. You look like a million dollars in that dress, honey!