Verbal Reasoning - Mental Ability Questions

From the given alternative words, select the word which cannot be formed using the letters of the given word:

CARPENTER

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

Precious

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=?

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

Ace, King, Queen, ?

Ramesh moves toward the east and covers 30 m and then takes a right and covers 40 m. Find the direction and the distance from the initial point to the final point.

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
FU, LO, RI, ?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

P_QR_QQ_PQ_R

The weights of 4 boxes are 20, 40, 50 and 30 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?