Season 4 Episodes30
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Ranked #17 of 30 in Season 4•−0.1 vs season avg
Twenty and chums find out what happens when you go past bus stop 20. Learn about the numbers 21, 22 and 23 with the Numberblocks.
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"Twenty-One and On" is episode 21 of Numberblocks season 4. It scored 8.0/10 from 21 votes, ranking #17 of 30 episodes this season (season average 8.1). It aired on August 5, 2019.