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 

If A ÷ B means that A is the father of B, A × B means that A is the mother of B, A + B means that A is the brother of B then which of the following expression shows that Q is the daughter of P?

Direction: Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis.

3 × 4 × 5 = 435

4 × 3 × 2 = 342

2 × 3 × 4 = ?

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.

Who is the eldest person in the group?

After interchanging the given two numbers and two signs what will be the values of equation (I) and (II) respectively?
× and ÷, 7 and 9

I. 8 × 3 ÷ 6 + 9 – 7
II. 9 – 7 × 1 + 6 ÷ 3

 ‘Pressure’ is related to ‘Pascal’ and ‘Electricity’ is related to ‘Watt' in the same way as ‘Heat’ is related to ‘______’.

Select the option that is related to the fifth word in the same way as the second word is related to the first word and the fourth word is related to the third word. (The words must be considered as meaningful English words and must NOT be related to each other based on the number of letters/number of consonants/vowels in the word)
 Nut and Bolt : Wrenches :: Screw : Screwdriver :: Nail : ?

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 * 5 * 10 * 2 * 13