How many such pair of letter are there in the words '

Select the wrong number from the given alternatives.

64, 32, 32, 48, 98, 240

Find the wrong number in the given series.

45, 50, 60, 80, 120, 180, 360

Find the wrong number in the given series.

75, 85, 76, 84, 77, 83, 78, 81, 79

Arrange the following words in a logical and meaningful order.

1. Monkey

2. Elephant

3. Rat

4. Fly

5. Lion

5, 15, 30, 135, 405, 1215, 3645

Select the wrong term in the series.

10, 19, 23, 52, 61, 133, 149

Find the wrong number in the given series.

17, 17, 51, 255, 1789, 16065

In the following question, select the wrong number from the given alternatives.

48, 50, 52, 57, 59, 68, 75

In the following question, select the wrong number from the given alternatives.

32, 16, 16, 24, 48, 126, 360

Identify the letter-cluster that does not belong to the following series.

RBK, TYM, VVO, XSP, ZPS, BMU