Quantitative Aptitude - Arithmetic Ability Questions

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Choose the one which is odd from the following options.

What is the value of (91 + 92 + 93 + ......... +140)?

Find the area (in sq units) enclosed by y = 0, x+6=0 and 2x-3y=6.

If three numbers are in the ratio 2 : 3 : 5 and the twice their sum is 100. Find the square of the largest of the three numbers.

Find x, if 5x-6+5x+6 = 6

A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr. The average speed will be

A solid has 12 vertices and 30 edges. How many faces does it have?