Which hormone is formed in roots of plants during water

Select the option in which the words share the same relationship as that shared by the given pair of words.

Hive: Bee

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

Select the combination of letter when placed sequentially in the blanks of the given series will complete the series.

L E __ P L E __ __ __ E A P L E __ P

If 24 @ 6 = 28 and 39 @ 24 = 102, then 22 @ 16 = '?'.

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

986 : 53 : : 725 : ?

If 49 × 45 = 45, 45 × 69 = 35 and 67 × 78 = 57, then 39 × 43 = ?