Verbal Reasoning - Mental Ability Questions

From the given words, select the word which cannot be formed using the letters of the given word.
HUMBLING

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

6 x 6 ÷ 10 - 8 + 2 = ?

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

M_P_M_R_PM_PM_RR_P

Which number will complete the series?
1,8,27,64,125,216,________

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
Oxygen, Toil, Arouse, Arson, Tenuous, ?

Raju's position in a row is 13th from the front side and 6th from the back side. How many people are standing in that row?

If C is coded 3 , DASH is coded as 32 , then DANCE will be coded as

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

T_ST_S_U_T_S