What approximate value will come in place of the question

Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.

What will come in the place of the question mark (?) in the following equation, if '+' and '÷' are interchanged and '×' and '–' are interchanged?

Select the set in which the numbers are related in the same way as are the numbers of the following set.

A boy pointing to a woman said, "She is the sister of my grandmother's only son-in-law." What is the relation between that boy's sister?

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(34, 47, 62)

(119, 142, 167)

Which two signs should be interchanged to make the given equation correct?

36× 15 + 784 – 16 ÷ (45× 12) = 49

Select the correct mirror image of the given figure when the mirror is placed at MN as shown.