Recommended problems from Programming Pearls

Column 1: 1,2,3,5,6,9
Column 2: 2,4,5,7,8
Column 4 1,2,3,4,6,7,8,9
Column 5: 3,5,7
Column 6: 6
Column 7: 2,3,7,9,11
Column 8: 1,3,6,7,8,9,10,11,12,14
Column 9: 4,7,8,9,11,12
Column 11: 1,2,4,6,9,11
Column 13: 3,4,7
Column 14: 1,2,3,4,7,8