Choose the missing terms out of the given alternatives :DF, GJ, KM, NQ, RT, ?

2, 3 ,8 , 27, 112, ?

Choose the missing terms out of the given alternatives : Z, X, S, I, R, R, ?, ?

9, 27, 31, 155, 161, 1127, ?

2, 3, 3, 5, 10, 13, ?, 43, 172, 177

Find the missing number / letters / word from the given alternative: AYBZC, DWEXF, GUHVI, JSKTL, ?

Choose the missing terms out of the given alternatives : U, B, I, P, W, ?

Choose the missing terms out of the given alternatives.<br> AZ, GT, MN, ?, YB

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