Which acid is found in vinegar?

2.5, 5, 15, 60, ?, 1800, 12600 

17 , 37 , 79 , 165 , ? , 689

16, 20, 11, 27, ?, 38

84, 105, ?,  168, 210, 259

What value should come in the place of (?) in the following number series?

1.5, 2.5, 4, 6, ?, 11.5

48, 24.5, ?, 39.75, 81.5, 206.25, 621.75

What will come in place of the question mark (?) in the following series?

21, 36, 66, 126, ?, 486

75,  80,  95, ?,  155,  200

What will come in place of the question mark (?) in the following series?

60, 110, 224, 463, ?, 1716

418, 406, 430, 382, 478, ?, 670