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123
Number of zeroes in factorial
Very easy
127
Dollars in bank
Very easy
132
Broken line (RU)
Medium
133
Square and points (RU)
Very easy
140
Financial pyramid
Very easy
146
Squares - 2
Very easy
149
Factorial - 2
Easy
152
New-year presents - 2
Easy
160
Dancing school
Easy
165
Symmetry (RU)
Very easy
167
Progressions (RU)
Medium
168
Lomonosov our days (RU)
Medium
178
Each third is free (RU)
Very easy
186
Egyptian symbols
Very easy
192
Just Fibonacci
Very easy
196
Simple game (RU)
Easy
215
Compote harvesting (RU)
Very easy
217
Big secret (RU)
Easy
219
Central heating
Very easy
239
Triangles
Easy
246
Pyramid
Medium
248
Young gardener
249
The Very Hard One
Easy
252
The Shortest does not Mean the S
Medium
253
Watermelon Fields Wonderland Countries Fools
Hard
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4
5
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41