Verbal Reasoning - Mental Ability Questions

In the following question, select the related number from the given alternatives.
48 : 63 : : 80 : ?

Select the related word/letters/number from the given alternatives.
Opposite : Identical : : Lengthy : ?

If "–" stands for division, "+" stands for multiplication, "÷" stands for subtraction and "×" stands for addition, which of the following equations is correct?

If '>' means 'minus', '<' means 'plus', '*' means 'multiplied by' and # means 'divided by', then what would be the value of

27 < 81 # 9 > 6 =

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

If "A" denotes "added to", "B" denotes "divided by", "C" denotes "multiplied by" and "D" denotes "subtracted from", then 87 B 3 C 4 A 4 D 50 = ?

Sham goes to his friend's house that is straight 10 Km from his house. On his way back, he takes a right turn and walks 2 Km and again takes a right turn and walks for 10 Km before he takes a right turn again. How much distance is Sham still away from his house?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
Money, Amity, Camera, Animal, Telomere, ?