Verbal Reasoning - Mental Ability Questions

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

CD, ? , MN, UV, EF

Select the related word/letters/number from the given alternatives. Coins : Mint :: Bricks : ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

200, 100, 50, 25, 12.5, 6.25, ?

In the following question, select the related letters from the given alternatives.TRACK : MECTV : : POND : ?

From the given words, select the word which cannot be formed using the letters of the given word.
MYSTIQUE

If 26#14=80; 5#3=16; 6#5=22; then what is the value of 14#5=?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
25 + 10 ÷ 240 x 16 = ?

In the following question, select the related letters from the given alternatives.
PRAG : QTDK : : STOP : ?