Choose the missing terms out of the given alternatives : WFB , TGD , QHG , ?

Choose the missing terms out of the given alternatives :S-4, F-6, H-8, J-10, ?, ?

24, 60, 120, 210, ?

Choose the missing terms out of the given alternatives : AI, BJ, CK, ?

Choose the correct order of the given alternative : SHG, RIF, QJE, PKD, ?____________________

7, 26, 63, 124, 215, 342, ?

Choose the missing terms out of the given alternatives : BZA, DYC, FXE, ?, JVI

Choose the missing terms out of the given alternatives : A, I, P, V, A, E, ?

Choose the missing terms out of the given alternatives.<br> U, B, I, P, W, ?