Here are the correct answers to find the odd one out from each group:

11. **C. sick** (others describe feeling or state of being)
12. **B. although** (others are verbs)
13. **B. fat** (others are health-related)
14. **C. healthy** (others describe negative states)
15. **B. smile** (others relate to living)
16. **C. cycling** (others involve a state of being active)
17. **C. fried chicken** (others are healthy food items)
18. **B. sunburn** (others are positive states)
19. **B. sore throat** (others describe general illness)
20. **A. sore** (others describe a positive state)

Feel free to ask if you need help with further explanations!