| Problem 1 (for Jan 8) | available here |
| Problem 2 (for Jan 13) | available here |
| Problem 3 (for Jan 15) | available here |
| Problem 4 (for Jan 20) | available here |
| Problem 5 (for Jan 22) | available here |
| Problem 6 (for Jan 27) | available here |
| No problem for Jan 29(exceptionally) | |
| Problem 7 (for Feb 3) | available here |
| Problem 8 (for Feb 5) | available here |
| Problem 9 (for Feb 12) | available here |
| Problem 10 (for March 2) | available here |
| Problem 11 (for March 4) | available here |
| Problem 12 (for March 9) | available here |
| Problem 13 (for March 16) | available here |