Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd word pair from the given alternatives.

What is the square root of 6561?

What is the value of |3(1) - 6|?

A sum of Rs. 2000 at 40% per annum compounded annually. Calculate the interest for the third your at compound interest.

What can be the maximum number of common tangent which can be drawn to two non-intersecting circles?

The number of sides of a regular polygon whose exterior angles are each 60 deg is

If the angles of a triangle are in the ratio of 2:3:5, then find the ratio of the greatest angle to the smallest angle.