Verbal Reasoning - Mental Ability Questions

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

A_C_E_B_DE

Select the related letters from the given alternatives.
WUV : TRS :: QOP : ?

Select the related letters from the given alternatives.
WUS : DFH :: MKI : ?

Arrange the given words in the sequence in which they occur in the dictionary.
1. Cadartrally
2. Caddisflies
3. Caducities
4. Caddisworms
5. Cadetships

In the following question, select the related word from the given alternatives.
Kilometre : Metre : : Tonne : ?

Introducing Reeta, Monica said, "She is the only daughter of my father's only daughter." How is Monica related to Reeta?

Choose the odd word/letters/number/number pair from the given alternatives.

If "S" denotes "multiplied by", "P" denotes "subtracted from", "R" denotes "added to" and "Q" denotes "divided by", then 14641 Q 121 P 100 S 2 R 100 = ?