Verbal Reasoning - Mental Ability Questions

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

_d_be_c_ed_b

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=?

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

P, Q, R and S are playing a game of carrom. P, R and S, Q are partners. 'S' is to the right of 'R'. If 'R' is facing West, then 'Q' is facing which direction?

Ajit, starting from a fixed point, goes 10 m towards North and then after turning to his right he goes 10 m. Then he goes 5,10 and 10 meters after turning to his left each time. How far is he from his starting point?

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

EXORBITANT

Choose the related word/letters/number from the given alternatives. CD : 916 : : ? : 100144

If "S" denotes "multiplied by", "V" denotes "subtracted from", "M" denotes "added to" and "L" denotes "divided by", then 36 L 9 S 8 V 7 M 5 = ?