| The most difficult 21st century mystery/case to be solved? | 5 | IntelligenceScaling | | | | |
| Maomao vs Arisu. Who outsmarts? | 2 | IntelligenceScaling | | | | |
| Can Takuya clear TG? Tell me your opinion | 1 | IntelligenceScaling | | | | |
| Random outsmarting battle: Makima vs Hoshino Aquamarine | 1 | IntelligenceScaling | | | | |
| Random outsmarting battle: Shigoku Kyou vs Kisaki Tetta | 1 | IntelligenceScaling | | | | |
| Who would win in mahjong? | 1 | IntelligenceScaling | | | | |
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