Math Puzzle 8

Puzzle 1: How can these be equal?

In which meaning 1070 = 1110?

Puzzle 2: If

5, 3, 2 = 151022

9, 2, 4 = 183652

8, 6, 3 = 482466

5, 4, 5 = 202541

Then,

7, 2, 5 =?

Puzzle 3: If

1, 6 = 37

3, 8 = 67

5, 9 = 86

7, 12 = 151

Then,

9, 13 =?

Puzzle 4: If

1 + 2 = 13

2 + 3 = 61

3 + 4 = 193

Then,

4 + 5 =?

Puzzle 5: To solve this, replace a n digit number by adding all digits, and solve, keep on repeating it until you get single digit.

10 × 11 × 12 = 9

11 × 12 × 13 = 9

12 × 13 × 14 = 9

13 × 14 × 15 = 9

14 × 16 × 20 =?