Speaking of geography, the St John's River, located roughly 30 minutes from me, also flows south to north.
But only because the Army Corps of Engineers says it can. See, there's really no need to convince water to travel uphill when you can just use enough dynamite to blow the damn hill up.
And the water would need to go into barrels, or bottles. Not a sea. Maybe you should have one those fancy geography teachers explain how bottled water works?
Just to make clear what you are speculating about: the Ob-Irtysh, Lena and Yenissei rivers are among the 10 longest on earth - Mississippi+Missouri-style!
The Soviet plans calculated not with sticks of dynamite but about 250 nuclear explosions to divert them. Maybe a little brain exercise and maybe assisted by some math teacher: Can you calculate how many bottles or barrels would be required to drain and fill one Mississippi river into, or three of them?
Honestly, you deserve the best teachers.