Verbal Reasoning - Mental Ability Questions

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

0, 3, 8, ? , 24, 35

Choose from the four diagrams given below, the one that illustrates the relationship among 'Languages', 'French' and 'German'.

Out of the 100 nature lovers, 20 people wanted to see only bison, 30 wanted to see both bison and tiger, 15 wanted to see only leopard, 25 wanted to see only tiger, 5 wanted to see both bison and leopard and the remaining wanted to see only bear.

The ratio of people to wanted to see tiger to those who wanted to see bear is

If 'U' is the husband of 'V', 'V' and 'W' are daughters of 'X', 'Y' is the husband of 'X', then 'Y' is the ____ of 'U'.

In the following question, select the related word from the given alternatives.
Frog : Amphibian : : Lizard : ?

In the following question, select the missing number from the given series.672, 666, 660, 654, ?

Select the related number from the given alternatives.
3/7 : 7/3 :: 9/2 : ?