| 105941 | The Parabola · Exercise 37 | Medium | |
| 105942 | The Parabola · Exercise 38 | Medium | |
| 105943 | The Parabola · Exercise 39 | Medium | |
| 105944 | The Parabola · Exercise 40 | Medium | |
| 105945 | The Parabola · Exercise 41 | Medium | |
| 105946 | The Parabola · Exercise 42 | Medium | |
| 105947 | The Parabola · Exercise 43 | Medium | |
| 105948 | The Parabola · Exercise 44 | Medium | |
| 105949 | The Parabola · Exercise 45 | Medium | |
| 105950 | The Parabola · Exercise 46 | Medium | |
| 105951 | The Parabola · Exercise 47 | Medium | |
| 105952 | The Parabola · Exercise 48 | Medium | |
| 105954 | The Parabola · Exercise 50 | Medium | |
| 105956 | The Parabola · Exercise 52 | Medium | |
| 105958 | The Parabola · Exercise 54 | Medium | |
| 105965 | The Parabola · Exercise 66 | Medium | |
| 105967 | The Parabola · Exercise 68 | Medium | |
| 105969 | The Parabola · Exercise 70 | Medium | |
| 105971 | The Parabola · Exercise 72 | Medium | |
| 105973 | The Parabola · Exercise 74 | Medium | |
| 105994 | Rotation of Axes · Exercise 11 | Medium | |
| 105996 | Rotation of Axes · Exercise 13 | Medium | |
| 105998 | Rotation of Axes · Exercise 15 | Medium | |
| 106000 | Rotation of Axes · Exercise 17 | Medium | |
| 106002 | Rotation of Axes · Exercise 19 | Medium | |
| 106004 | Rotation of Axes · Exercise 21 | Medium | |
| 106006 | Rotation of Axes · Exercise 23 | Medium | |
| 106008 | Rotation of Axes · Exercise 25 | Medium | |
| 106010 | Rotation of Axes · Exercise 27 | Medium | |
| 106012 | Rotation of Axes · Exercise 29 | Medium | |
| 106014 | Rotation of Axes · Exercise 31 | Medium | |
| 106016 | Rotation of Axes · Exercise 33 | Medium | |
| 106018 | Rotation of Axes · Exercise 35 | Medium | |
| 106019 | Rotation of Axes · Exercise 36 | Medium | |
| 106020 | Rotation of Axes · Exercise 37 | Medium | |
| 106021 | Rotation of Axes · Exercise 38 | Medium | |
| 106022 | Rotation of Axes · Exercise 39 | Medium | |
| 106023 | Rotation of Axes · Exercise 40 | Medium | |
| 106024 | Rotation of Axes · Exercise 41 | Medium | |
| 106025 | Rotation of Axes · Exercise 42 | Medium | |
| 106026 | Rotation of Axes · Exercise 43 | Medium | |
| 106027 | Rotation of Axes · Exercise 44 | Medium | |
| 106028 | Rotation of Axes · Exercise 45 | Medium | |
| 106029 | Rotation of Axes · Exercise 46 | Medium | |
| 106030 | Rotation of Axes · Exercise 47 | Medium | |
| 106031 | Rotation of Axes · Exercise 48 | Medium | |
| 106032 | Rotation of Axes · Exercise 49 | Medium | |
| 106033 | Rotation of Axes · Exercise 50 | Medium | |
| 106034 | Rotation of Axes · Exercise 51 | Medium | |
| 106035 | Rotation of Axes · Exercise 52 | Medium | |