Can you solve this hard number series problem ?
7, 8, 10, 12, 16, 18 ?

22

Its is series of prime numbers + 5

1st 7 Prime nos are :
2 , 3 , 5 , 7 , 11 , 13 , 17
Adding 5 =>
7 , 8 , 10 , 12 , 16 , 18 , 22(Ans)