Verbal Reasoning - Mental Ability Questions

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

In the following question, select the related number from the given alternatives.
243 : 578 : : 163 : ?

If "α" denotes "subtracted from", "β" denotes "multiplied by", "θ" denotes "added to" and "δ" denotes "divided by", then 10 θ 8 β 4 δ 8 α 9 = ?

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

s_r_t_s_r

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

F, I, M, P, T ?

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.

17 x 18 ÷ 30 - 20 + 14 = ?

If 14 (16) 18 and 33 (64) 25, then what is the value of ‘A’ in 25 (49) A?

Identify the diagram that best represents the relationship among classes given below
Tennis fans, Cricket players, Students