142857!

142857 * 1 =142857
142857 * 2 = 285714
142857 * 3 = 428571
142857 * 4 = 571428
142857 * 5 = 714528
142857 * 6 = 857142

Jacob.

26th January is a public holiday in India; hence municipality offices were closed on that day.

There is no reason why the original amount should match the total amount of withdrawals!

Windmill

Sum of dices in the even number rectangles is 3, 5, 7,
Sum of dices in the odd number rectangles is 0, 2, 4, 6
Next number in the even category should be 9.

Hence the missing one is 3.

129.

These are all prime numbers appended by 1.

So, we have 2 3 5 7 11 13 17 19 23 ..  each of these numbers are appended by 1…

Because they all are playing Monopoly game!

Coconut!

The man was having hiccups. Barman recognized this and aimed a pistol at him to give him a shock. Because of this shock therapy, his hiccups stopped.

It is possible.

Either they are triplets or they are born on the same day but different year!