Exact Change
Counting the number of ways to make an exact amount using Canadian coins and bills.
Mathematics
Tiling Strips
Tiling a long and narrow gridded strip with square tiles.
Re-Sorting
A problem about sorting a shuffled set of cards back into the original order
Connect Four
A question about arrangement of coloured chips on a Connect Four board
Splitting LCM
Four problems about splitting a natural number into smaller natural numbers.