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670,947 views
Thinking & Learning
Can you steal the most powerful wand in the wizarding world?
lesson duration 05:20
404,902 views
481,384 views
791,648 views
900,388 views
905,163 views
Thinking & Learning
Can you survive the creation of the universe by solving this riddle?
lesson duration 06:24
866,784 views
1,128,881 views
667,069 views
886,275 views
Mathematics
Can you solve the rogue submarine riddle? Difficulty level: Master
lesson duration 06:19
1,078,819 views
33,785,673 views
2,627,086 views
767,436 views
4,465,542 views
2,148,442 views
1,653,188 views
1,265,386 views
1,375,738 views
387,412 views
Science & Technology
This thought experiment will help you understand quantum mechanics
lesson duration 04:59
285,958 views
2,722,220 views
1,814,376 views