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.

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

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

What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?

The ratio of total surface area and volume of a sphere is 1 : 7. This sphere is melted to form small spheres of equal size. The radius of each small sphere is 1/6th the radius of the large sphere. What is the sum (in cm2) of curved surface areas of all small spheres?

A cylindrical vessel of radius 8 cm is partially filled with water. By how much will the water level rise if a sphere of radius 7 cm is completely immersed in this water?

Two circles of radii 17 cm and 8 cm are concentric. The length of a chord of greater circle which touches the smaller circle is

Sunil started his journey at 2:33:34 p.m. and reached the destination at 4:43:45p.m. Anil started the journey 45 min 27 secs after Sunil and reached the destination 37 mins 16 secs after him. How long did Anil take to complete his journey?