Random Puzzles 

Workings

Hint
One inch = 25.4mm.

Answer
Millimetres in a mile.

Reasoning
One inch = 25.4mm.

So:

1 mile = 1760 yards = 1760 x 3 feet = 1760 x 3 x 12 inches = 1760 x 3 x 12 x 25.4 millimetres = 1,609,344mm in 1 mile.

And:

2 kilometres = 2000 metres = 2000 x 100 centimetre = 2000 x 100 x 10 millimetres = 2000 x 100 x 10 ÷ 25.4 inches = 2000 x 100 x 10 ÷ 25.4 x 16 = sixteenths of an inch ≈ 1,259,843 sixteenths of an inch in 2 kilometres.

Workings

Hint
The first letters of the words are: P, M, T, M, R, T, W, T, L, T.

Answers
parasite marginal tangible medicate reactive teaching woodland treading latitude teenager

Workings

Hint
Look a the letters.

Answer
Michael.

Each name begins with the last letter of the preceding name.

Workings

Hint
The first country is Bangladesh.

Answer
Bangladesh, Egypt, Fiji, Finland, Japan, Liechtenstein, Nicaragua, Switzerland, Tunisia, Zambia.