| Title | Difficulty | Solved By | Date Added |
|---|---|---|---|
| Complementary Angles 1 | easy | 32 (40%) | 2008-12-27 |
| Complementary Angles 2 | easy | 38 (47%) | 2008-12-27 |
| Supplementary Angles 1 | easy | 35 (43%) | 2008-12-27 |
| Supplementary Angles 2 | medium | 37 (46%) | 2008-12-27 |
| Straight Angle 1 | easy | 36 (44%) | 2008-12-24 |
| Vertical Angles 1 | medium | 36 (44%) | 2008-12-27 |
| Parallel Lines 1 | easy | 35 (43%) | 2008-12-27 |
| Parallel Lines 2 | easy | 34 (42%) | 2008-12-27 |
| Parallel Lines 3 | easy | 37 (46%) | 2008-12-27 |
| Parallel Lines 4 | hard | 35 (43%) | 2008-12-28 |
| Converse of Parallel Lines 1 | easy | 33 (41%) | 2008-12-28 |
| Converse of Parallel Lines 2 | medium | 28 (35%) | 2008-12-28 |
| Converse of Parallel Lines 3 | medium | 32 (40%) | 2008-12-28 |
| Converse of Parallel Lines 4 | hard | 22 (27%) | 2008-12-28 |
| Converse of Parallel Lines 5 | medium | 29 (36%) | 2008-12-28 |
| Parallelogram 1 | easy | 31 (38%) | 2008-12-29 |
| Parallelogram 2 | easy | 33 (41%) | 2008-12-29 |
| Parallelogram 3 | medium | 32 (40%) | 2008-12-29 |
| Parallelogram 4 | easy | 29 (36%) | 2008-12-29 |
| Parallelogram 5 | hard | 29 (36%) | 2008-12-29 |
| Parallelogram 6 | easy | 29 (36%) | 2008-12-29 |
| Parallelogram 7 | medium | 29 (36%) | 2008-12-29 |
| Parallelogram 8 | hard | 26 (32%) | 2008-12-29 |
| Parallels and Perpendiculars 1 | medium | 29 (36%) | 2009-01-14 |
| Parallels and Perpendiculars 2 | medium | 28 (35%) | 2009-01-18 |
| Parallels and Perpendiculars 3 | medium | 28 (35%) | 2009-01-18 |
| Triangle Sum Theorem 1 | easy | 30 (37%) | 2009-01-14 |
| Triangle Sum Theorem 2 | medium | 27 (33%) | 2009-01-18 |
| Triangle Sum Theorem 3 | hard | 25 (31%) | 2009-01-18 |
| Triangle Exterior Angle Theorem 1 | easy | 30 (37%) | 2009-01-18 |
| Quadrilateral Sum Theorem 1 | easy | 26 (32%) | 2009-01-18 |
| Similar Triangles 1 | easy | 33 (41%) | 2009-02-08 |
| Similar Triangles 2 | easy | 29 (36%) | 2009-02-08 |
| Similar Triangles 3 | medium | 26 (32%) | 2009-02-08 |
| Similar Triangles 4 | hard | 28 (35%) | 2009-02-08 |
| Congruent Triangles 1 | easy | 29 (36%) | 2009-02-08 |
| Congruent Triangles 2 | medium | 26 (32%) | 2009-02-08 |
| Congruent Triangles 3 | hard | 26 (32%) | 2009-02-08 |
| Congruent Triangles 4 | hard | 23 (28%) | 2009-02-08 |