Which of the following contains information about a

Given set:  278, 257, 365

Choose the word which is different from the rest

In a row of bicycles, pink bicycles is 13th from the right end and 31st from the left end. How many total bicycles are there in the row?

Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.

63 :  45 : : 85 : ?

Select the number combination of letters that when placed sequentially in the blanks of the given series will complete the series.

If 76 + 65 = 2, 72 + 73 = 9, then 84 + 82 = ?