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20 questions
4x5
10
20
30
40
6x7
35
49
42
36
2x9
20
18
16
19
8x6
24
32
48
50
6x9
54
48
60
24
3x7
14
12
24
21
4x9
20
32
36
28
7x5
25
35
55
15
8x8
16
40
64
24
4x3
15
18
10
12
4x8
32
36
40
28
2x0
1
2
0
4
9x9
18
27
81
90
5x5
10
20
35
25
4x4
16
20
24
28
6x6
12
24
18
36
6x3
12
18
20
24
10x10
10
100
1000
1
12x2
20
22
24
28
12x3
30
32
34
36