which of this number are multiples of 2?

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.

2, 4, 6, 8, 10, 12, 14, 16, 18

are you sure?

Yes, I am sure. In the list you provided, the numbers that are multiples of 2 are 2, 4, 6, 8, 10, 12, 14, 16, and 18.