Refer to the following number series and answer the questions:

7 2 9 6 3 7 3 9 7 7 3 9 7 3 2 2 1 3 3 9 3 7 3 9 3 9 

How many 3's are there that are immediately preceded b 7 and immediately followed by 9?

In the given number series, how many odd numbers are there which are immediately preceded by an even number and immediately followed by an odd number?
5 1 4 7 3 9 8 5 7 2 6 3 1 5 8 6 3 8 5 2 2 4 3 4 9 6

How many 3’s are there in the following sequence which is neither preceded by nor immediately followed by 9?
9 3 6 6 3 9 5 9 3 7 8 9 1 6 3 9 6 3 9