Originally published April 9, 2011
My grandmother has a pair of calendar cubes; each cube has six digits on it, one on each face.
Every morning, she re-arranges them to show the day of the month as a two-digit number (01 to 31).
Even though some numbers appear on both cubes, you can easily tell them apart because one cube is ivory and the other is brown.
I noticed that it was possible to use the ivory cube in the tens place and the brown cube in the ones place for SEVEN days in a row (within one month)!
Can you figure out what digits are on each cube?
Please forward a RiddleDude email to friends and family in your address book. Suggest that they sign up for the daily email. Ask them to forward it to their friends. Paste us to your Facebook page!
You can best support our site—which is also YOUR site—by promoting it.
RiddleDude.com is a free site and will always be a free site. We do it for the love of riddles. Remember, your comments and submissions are always welcome.
RiddleDude
Warning: Use of undefined constant bfa_comments - assumed 'bfa_comments' (this will throw an Error in a future version of PHP) in /home/customer/www/riddledude.com/public_html/wp-content/themes/atahualpa/comments.php on line 132
The first cube has 0, 1, 2, 3, 4, 5
The second cube has 0, 1, 2, 6, 7, 8
the six can be turned upside down to make a nine
Correct, Kayla!
The ivory cube has 012345; the brown cube has 012678.
The 6 on the brown cube is also a 9, just turn it upside-down!
There are two times each month where it is possible to keep the ivory cube in the tens place for seven days in a row:
06 07 08 09 10 11 12 and 16 17 18 19 20 21 22.
You are today’s winner.