What will come in place of ‘?’ in the following

'A × B' का अर्थ है 'A, B का पति है' 

'A + B' का अर्थ है 'A, B का भाई है' 

Which of the following numbers will replace the question mark (?) in the given series?

13,14,23,48,97,178,?

In a certain code language,

A + B means ‘A is the brother of B’.

A − B means ‘A is the father of B’.

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series. 

Identify the number that does NOT belong to the following series.

289, 306, 340, 389, 459, 544

Which two numbers (not digits) should be interchanged to make the given equation correct?

24 ÷ 3 – 4 × 2 + 6 × 5 + 12 = 50