Complete the following alphabet series.
ABC, PQR, DEF, STU, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
FU, LO, RI, ?

From the given alternatives the word which cannot be formed using the letters of the given word
PSYCHOLOGY

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.
deb, ijg, nol ? xyv

Arrange the given words in the sequence in which they occur in the dictionary.
1. Energy
2. Earlobe
3. Economics
4. Edition
5. Editor

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.
c_bba_cab_ac_ab_ac

Arrange the given words in the sequence in which they occur in the dictionary.
(1) Necrology
(2) Nacromancy
(3) Necropolis
(4) Nacrophilia