Probably 80,000 kernels in a bushel of corn.
Kernel sizes can vary widely depending on a number of factors, but a reasonable average would be around 80,000.
Somewhere between 50 and 100 pounds. Yeah, that sounds like a pretty big variance, and it is. The key variable here is the moisture content of the corn. At 5% it would weight 49.81 pounds. At 50%...