Select the letter that will replace the question mark (?) in the given letter series.
 a, d, h, n, ?

By interchanging the given two signs which of the following equation will be correct?
 × and +

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 45 * 9 * 3 * 7 * 5 * 133

Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

Option 

Directions: Study the following information carefully and answer the questions that follow.
 Eight people – Aishwarya, Kavya, Surabhi, Sangeetha, Shruthi, Swathi, Anita and Meghana were born in different years 1983, 1988, 1991, 1993, 1996, 2000, 2006 and 2012 not necessarily in the same order. Kavya’s age is a multiple of 5. Three people were born between Kavya and Meghana. Swathi is born before Kavya, but she is not the eldest person. Four people were born between Swathi and Anita, who is not the youngest person. Surabhi was born just before Aishwarya. Only one person was born between Sangeetha and Shruthi. Sangeetha is not the youngest person.

Note: 

(1) All calculations are done with respect to the present year, 2021 assuming the month and date to be same as that of the years as mentioned above.
(2) Each person is assumed to born on the same date and same month of the respective years.

Which of the following is true?

I. Mani likes Orchid.
II. The one, who likes Orchid doesn't sit at the extreme end.
III. Mano sits at the extreme left end.

Direction: Study the information given below carefully and answer the questions that follow.

There are 10 members in the family who are sitting at some distance from each other in a park. N is 4 m in the west of M, who is 5 m in the north of O. Q is 12 m in the west of R. T is 3 m in the west of S, which is 12 m in the south of R. O is 6 m in the east of V, which is 2 m in the north of P, which is 8 m in the west of U. T is 1 m in the south of U.

What is the shortest distance between N and Q?

Direction: Study the following information carefully and answer the given questions.
An uncertain number of people are sitting in a row facing north and are at an equal distance between them. The number of people sitting to the left of A is the same as to the right of H. G is sitting third to the right of D, who is sitting immediate right of A.
The number of people sitting between I and F is the same number of people sitting between F and B. H is sitting four places away from E, who is not an immediate neighbour of C. Only one person is sitting between D and I, who is sitting fourth from the left end. C is sitting exactly between F and B, who is sitting immediate left of H. Two people are sitting between G and F.

Who among the following is sitting at the extreme end?

Direction: Study the information given below carefully and answer the questions that follow.

There are 10 members in the family who are sitting at some distance from each other in a park. N is 4 m in the west of M, who is 5 m in the north of O. Q is 12 m in the west of R. T is 3 m in the west of S, which is 12 m in the south of R. O is 6 m in the east of V, which is 2 m in the north of P, which is 8 m in the west of U. T is 1 m in the south of U.

In which direction is U with respect to M?