Q3.

Answer the question asked based on the following number series. 
(Left) 2 5 4 3 7 8 6 7 9 4 3 7 8 6 2 3 4 8 9 4 8 7 6 4 3 7 2 8 9 7 5 3 2 4 5 9 (Right). 
In the above series, how many such odd numbers are there which are immediately preceded by an even number and also immediately followed by an even number? (All calculations should be done from left to right only)

Q4.

Select the option that represents the letters that, when placed from left to right in the same sequence in the blanks below, will complete the letter series. 
B_GKM_TV_CE_L

Q5.