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15 questions
9x8
72
77
81
73
9x9
81
108
72
96
2x4
8
10
12
14
4x4
16
18
20
24
8x4
32
36
40
42
2x3
6
8
12
5
5x5
25
30
40
35
6x5
30
35
40
45
6x7
42
48
56
63
7x7
49
56
77
42
10x8
80
88
90
100
6x4
24
36
42
22
12x5
60
72
84
96
8x8
64
72
80
62
9x3
27
36
24
20
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