A hard ACT question and an Olympiad problem
11:59
Can you solve this elementary school question from China?
13:51
so you want a VERY HARD math question?!
10:33
Dinamična i uzbudljiva partija do samog kraja 🔥🔥🔥🔥 MENDIS vs SCHMIDT #2205
17:26
Researchers thought this was a bug (Borwein integrals)
15:04
A legendary question from the toughest exam
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The SAT Question Everyone Got Wrong
15:15
Calculating i to the power i the right way. Why every proof you have seen is wrong
11:15