ANSWERS
Add 2 hours to 11 o'clock and you get 1 o'clock
The name of the ship.
Note: when someone is stumped by any of the below, you typically have to only mention what one of the letters is and s/he says, "Oh! I get it!" In other words, once you have provided THE PROPER CONTEXT, the rest is easy. Enhancing your capacity to search through contexts is the point of such exercises.
1. A rose = R = R
2. 8 days - 24H = 1W
3. 3pairs = 6
4. Hour Hand and MH at 12 = N or M...
5. 4Jacks + 4Q + 4K = FC
6. 23Y - 3Y = 2Decades
7. Army + N + AF + MC + CG = AF
8. Eight - 8 = Z
9. Yesterday + 2D = T
10. Christmas + 6D = NYE
11. 1 + 6Zeros = 1M
12. No News = GN
13. Texas = LSS
14. Maine+M+NH+V+C+RI = NE
15. AL and JG and WM and JFK were all A
16. N and P and SM = Ships of Colum bus
17. 1Bird in the H = 2 in the B
18. Y - S - S - A = Winter