Ok, here we go
#1 - 18 (they go from 10 to 20 to 11 to 19 to 12 so the pattern is add one subtract one hince the 10 to 11 and 20 to 19)
#2 I couldn't figure out this one
#3 - T ( B = 2nd letter E = 5th I = 9th N = 14th, they add 1 between the spaces of letters b - e = 3 spaces e - I = 4 I - n = 5)
#4-1 D)bcfa doesn't belong (the letters are all beside each other except for bcfa)
#4-2 C)Ball (square and circle are the same as cube and ball just that one is 3D and one is 2D)
#4-3 A)Poor (it goes from sorta, luck warm, to major, hot, so not so good to poor)
#4-4 B)24 (it is counting starting from Z so W = 4th letter and C = 24th)
#4-5 C)s (2 letters in between the small and Cap letter Starting with cap V have 2 in between the small and cap, we are going backwards to keep it the same as a to D so its s)
#4-6 B)peace (this one was tricky because dove is also soap BUT SOS is a symble of help so dove is a symble of peace)