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The intended solutions to the weekly puzzles were:

Week 2: cos(1), e, cd

Week 3: s^2+2, sqrt(2), sqrt(3)

Week 4: 0.156, 2, 0.636

Week 5 & 6: 2h, 960, 0

Week 7: 2/3, 59/20, 36

Week 8: 1/2, (log(2), 2), 243

Week 9: Pi/3, log(5), mv^2/2

Week 10: Left as an exercise....

Let me know of any errors!