4:21

Goodest Math Challenge

7:02

Aggvent Calendar Day 31

12:59

7 factorials you probably didn't know

3:26

Aggvent Calendar Day 10

14:28

DIVISION OF BINARY NUMBERS.

4:58

4 Squares 1 Circle

15:52

How Many Rooks to BEAT Martin?

20:51

Slavic vs Germanic Can they understand each other?? How similar are European Languages?