『残響のテロル』All Sphinx's Videos

Spoiler Alert
This is from an anime called 残響のテロル (Zankyou no Terror) or Terror in Resonance.
If you haven't watched the anime, don't watch this video yet.

Don't you think there should actually be Sphinx's videos on Youtube? :D
Seems like Sphinx's account name is 'aaaa'.

They're from 6 episodes.
Episode 1: スピンクスの天気予報 (Sphinx no Tenki Yohou)
Episode 2: スピンクスのなぞなぞタイム (Sphinx no Nazonazo Time)
Episode 3: スピンクスのなぞなぞとけるかな？(Sphinx no Nazonazo Tokeru Ka Na?)
Episode 4: スピンクスの爆弾タイムショック (Sphinx no Bakudan Time Shock)
Episode 5: ...Actually there's no title, but I named it after what I heard Twelve said.
Episode 10: スピンクス事件新たな犯罪予告 (Sphinx Jiken Aratana Hanzai Yokoku) ← The text shown is quite blurry but I think this is it. And I think the last one is kind of cool. :)