rub your minds on this one will you? ? ?, your intelligence doesn't matter, tis riddle will surely kill you.

Question

The toughest of them all, as far as i know,
is a one that makes you mad as hell,
So you need to be prepared, and with a little maturity to show
and with a huge logical brain as well.

100 coins in a dark room, 20 tails up,
You cant see or feel the faces, just invert and move,
Sort out how to make two groups of any size, Yup
to get same no. of tails in both, believe me you need a logical groove.

now one of you has got it right. i am sooooo...... surprised that a person got it right just in 6 minutes. but you will have to wait 4 hrs (if you are a dunce and cant figure out who got that right)
to know who got that right.

Answer 1

First, move any 20 pennies to the other table, keeping the same side on each penny up.

Second, flip all 20 pennies on the other table.

Answer 2

First, move any 20 coinss to the other table, keeping the same side on each penny up.

Second, flip all 20 pennies on the other table.

Initially table 1 will have 80 heads and 20 tails, and table 2 will have 0 heads and 0 tails.

Let t be the number tails moved, and h be the number of heads.

After the move table 1 will have 80-h heads and 20-t tails, and table 2 will have h heads and t tails.

After the flip table 1 will have 80-h heads and 20-t tails, and table 2 will have t heads and h tails.

So, at this point table 1 has 20-t tails and table 2 has h tails. We moved 20 coins: h heads, and t tails, so h+t=20, or h=20-t. 20-t and h must be the same amount, thus both tables have the same number of tails, although we don't know what that number is

Answer 3

first move the 20 coins that sound same on rubbing on the table to one side and seperate other 80. now u have distinct groups. any ways akshay is right . every coin has both heads and tails

Answer 4

Dear P. B., ye...!!
It's quite simple, just count fifty coins and put a side; this makes two groups of same number of coins which will have equal number of tails as well as heads, cus each coin has one side head and the other side tail.

Answer 5

I am so smart i have used extra knowledge.
I have discovered Owls have tiny tails.
I will grab the 20 tails of all the 20 owls and make
them see in the dark and solve the problem.

Answer 6

Feel for the tails and put them to the side then turn up 30 more

Answer 7

The faces are the heads side, so you can sort it out by tails, otherwise how would you know there are 20?

Answer 8

put 10 tails in a pile and the other 10 in another pile. divide the rest between the piles.

Answer 9

All coins have heads & tails, just make two stacks.

Answer 10

Take 20 coins aside and flip them


p.s. ok.. got it... now can u send me the link to that japanese question