Verbal Reasoning - Mental Ability Questions

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Ancillary

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

BC, JK, RS, ?

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

C, G, L, R, ?

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

HPU, BJO, VDI, PXC, ?

In the question, selection the missing number from the given alternatives.

Select the missing number from the given options?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. 1,3,7,13,21,?

In a certain code language, @ represents '+', ⊕represents '-', α represents '+'and 'θ' represents 'X '. Find out the answer of the following question.

107 θ 3 ⊕ 64 α 8 ⊕ 2θ9=?