1, 4, 9, 16, 25?

32, 44, 58, 74, 92, 112, (?)

3, 7, 6, 5, 9, 3, 12, 1, 15, ?

Which of the following numbers will replace the question mark (?) in the given series?

7, 19, 4, ?, 1, 25

3, 6, 18, 72, ?

2, 3, 5, 6 ,? , 9, ?, 12

Complete the series choosing the missing letter

ab__b__aa__b__ba

1, 2, 5, 12, 27, 58,121…….