What value should come in place of (?) question mark in

Select the number from among the given options that can replace the question mark (?) in the following series.

23, 27, 43, 79, 143, ?

Which is the one that does not belong to the group?

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

13 × 6 + 24 ÷ 6 – 17 = 91

Replace the question mark with an option that follows the same logic applied in the first pair.

Seismology: Earthquake::Geology: ??

‘A @ B’ means ‘A is the wife of B’

‘A = B’ means ‘A is the brother of B’

‘A # B’ means ‘A is the son of B’

The equations in the statements represent the heights of the given letters. According to these equations, find who is the shortest amongst all.

Select the option figure in which the given figure is embedded. (rotation is NOT allowed)