2, 15, 4, 12, 6, 7, ?, ?

Choose the missing terms out of the given alternatives.<br> ajs, gpy, ?, sbk, yhq

Choose the missing terms out of the given alternatives : DHL, PTX, BFJ ?

Choose the missing terms out of the given alternatives : UPI, ?, ODP, MBQ, IAW

Choose the missing terms out of the given alternatives.<br> AYD, BVF, DRH, ?, KGL

One term in the number series is wrong. Find out the wrong term.<br>10, 14, 28, 32, 64, 68, 132

13, 35, 57, 79, 911, ?

Choose the missing terms out of the given alternatives : KM5, IP8, GS11, EV14, ?

6, 12, 21, ?, 48