Verbal Reasoning - Mental Ability Questions

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

8 x 10 ÷ 20 - 5 + 14 = ?

Consider the following information and answer questions based on it.

Seven bottles colored - brown, blue, black, violet, white, indigo and purple are kept in a row, in random order, from left to right such that the -

1. White and purple bottles are not at either extremes.

2. Brown bottle is to the immediate right of violet bottle and to the immediate left of the white bottle.

3. White, violet and brown bottles are not at the center.

4. Black bottle is to the immediate left of purple bottle.

5. Blue bottle is neither second last nor at either extremes.

Which bottle is at the center of the row?

A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as shown in the given two matrices. The columns and rows of Matrix-I are numbered from 0 to 4 and that of Matrix-II are numbered from 5 to 9. A letter from these matrices can be represented first  by its row and next by its column ,for example 'B' can be represented by 21,42 etc and '0' can be represented by 95,89 etc. similarly,you have to identify the set for the word ''YUCK''.

Mayank remembers that the examination is after 18th December but before 21st December, while Suraj remembers that the examination is before 24thDecember but after 19th December. On which date of December is the examination?

If P means '/', R means 'x', Q means '+' and S means '-', then 36 P 6 Q 7 R 8 S 11 =

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

a _ c a a b _ a _ b c a a b _ a _ b _ a

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

DSL, FUN, HWP, ?, LAT

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

LNP, MOQ, NPR, ?, PRT