Could you please point out the numbers of the phrases that sound strange? 1. Sit on the fence – stay neutral 2. To have something on the brain – to be thinking about something constantly 3. To keep nose on the grindstone – to concentrate on working or studying hard 4. To hang in there – when you encourage someone to keep on doing something despite the difficulties 5. Pound the pavement – to go from company to company in search of a job 6. Pull all the stops out – to do all you can to make something successful 7. By the skin of your teeth - just barely 8. A no brainer 9. To catch some z’s 10. To cut a deal 11. Cut and dry - something that is very clear 12.DOA - a hopeless thing