Verbal Reasoning - Mental Ability Questions

If EFMIJ means DELHI, then the last letter of the word got by decoding IQBOS is

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

56 ÷ 8 + 12 - 72 = ?

If (3)2 @ 1 * 7 = 98 and (4)2 @ 2 * 16 = 178, then (5)2 @ 3 * 9 = ?

If IRON is written as GOKI, then KNIFE may be written as

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

JN, OR, UW, BC, ?

In the following question, select the related letters from the given alternatives.
BPTW : CQUX : : CHNS : ?

In the following question, select the related word from the given alternatives.
Mathematics : Formulas : : Chemistry : ?

Which of the following interchanges in signs and numbers will make the given equation correct?
8 x 6 + 4 = 52