Baikal has almost twice the volume of Superior, but less than half the surface area. That's a big hole in the ground.
That's a heck of a way to score $50.
How about you learn how to use this amazing thing called google?
Superior: 12,100 km³
Baikal: 23,615.39 km3
Well that took ten seconds.
Then you don't know how to use google. I found the information within seconds.