Wednesday, September 18, 2013

Number Bubbles

Put the numbers
1, 2, 3, 4, 5, 6, 7, 8, 9
in the bubbles so that each edge adds up to the same thing.

Thursday, September 12, 2013

What number comes next?
1, 3, 6, 10, 15, 21, ___

Wednesday, September 4, 2013

Ancestrally speaking

Hungry Horace was looking through the family photo album, which has a photo of each of his parents, each of his grandparents all the way up to each of his great-great-great grandparents. How many photos is that?