Quantitative Aptitude - Arithmetic Ability Questions

What is the value of (cos 45 - 1/3) ?

The mean of the data 2, 9, 9, 3, 6, 9, 4 is

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

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

In the following question, select the odd letter/letters from the given alternatives.

If a + b = 8 and ab =15, then a3 + b3 is

If √(1 + cot2A) = x, then the value of x is

What is the simplified value of 22433+393-11253?