Korean band or group names

I downloaded a Korean K-pop compilation album and as I was scrolling the list of songs in it, I realised that K-pop is filled with really 'imaginative' and 'inspirational' names. So these are the ones that I picked up based on adding a numerical symbol or a number in it.

I believe there are meanings behind their names but this is what I thought it meant at first read...

1.  B1A4 = Blaa
2. i1 1evn = eleven
3. 10 cm = wtf? who's cock?
4. 4 pm = ok...
5. Dok2 = Dok Dok?
6. 2 pm = lunch?
7. 2 am = bed time?
8. 2ne1 = 21
9. 1TYM = one time
10. B2ST = Best
11. Tasty 2wins = Tasty twins
12. 4Minute = smoke break
13. M4M = spin off of M2M? lol
14. 2YOON = 2 singers named Yoon?
15. Girl2School = 2 school girls? kinky and paedo
16. F1rst = first
17. Nine Muses = yea okay 9 of them
18. X-5 = BMW?
19. 2Bic = 2 big??? or 2 bic lighters?
20. 7942 = God knows...
21. E-7 = I only know 7-E (leven)
22. 24K = Gold plating? 99.999% pure gold
23. BOB4= boba? bubble tea?
24. 100% = Right
25. 84LY = ateforly?
26. 15& = This one i know... they were both 15 when they were on stage
27. E2RE = etoore?
28. ZE:A5 = excel sheet?
29. T-ara N4 = T-5min
30. LC9 = some diet pill name
31. 2 EYES = duh!
32. 2 JULY = and ?!
33. 50kg = maximum weight for kpop stars?
34. One Piece = well done, you arrived in one piece
35. Seventeen = 17 year olds...

Don't hate me. I wouldn't know indepth the meaning of their names. But its just getting funnier...