Riddle of the day: You are BLIND. You are given 52 cards: 42 face down, 10 face up. How do you divide the deck into two stacks with an equal number of face UP cards? Remember, you cannot see.
Riddle of the day: You are BLIND. You are given 52 cards: 42 face down, 10 face up. How do you divide the deck into two stacks with an equal number of face UP cards? Remember, you cannot see.
Count out ten cards onto a table and flip this pack of ten cards over. Both piles will have the same number of face up cards.
Using your sense of touch, you feel which ten cards are curved in the opposite direction of the others, obviously because they are facing the opposite direction. Place those ten cards face-up to onto the table. The rest of the cards are now face-down, so deal down 16 more cards, flipping them face-up onto the face-up pile already on the table. Place the remaining 26 cards next to the face-up pile, thus having two equal piles: one face-up, the other face-down, and both with 26 cards.
Or just use the colorblind impromptu method.
Riddle of the day: You are BLIND. You are given 52 cards: 42 face down, 10 face up. How do you divide the deck into two stacks with an equal number of face UP cards? Remember, you cannot see.
Here's how it works. There are ten face up cards in the deck. When you count out ten cards to the table, you will get X number of face cards in those ten. So, there will be 10 - X cards left in the remaining 42 cards. Let's say it was 3 face up cards counted in the ten dealt to the table, that would leave 7 in the remaining 42 cards. If 3 of the 10 cards counted are face up, then seven are face down. When the pile of ten is flipped over, you now have seven face up cards in the pile of ten and in the pile of 42.