You have with you 100 coins, 30 of which are heads and 70 tails. Distribute them on two tables in such a way that there are equal number of heads on both tables. You can not feel or see the coins.
This is a very easy puzzle. (which I still took 30 minutes to solve :P) Even so, here are hints in invisible fonts:
1. Use your hands.
2. What will you do if you have one head and 99 tails to begin with?
*From now on, the source of all my puzzles is Hari unless mentioned otherwise.
Take any 30 and flip them over. Now this pile has same number of heads as the remaining coins. Right?
That’s right.
distribute 50 coins on each table, then flip all the coins on one of the tables.