Misc: What is the first letter of the Russian alphabet?

Questions

There are 318,979,564,000 possible ways of playing just the first four moves on each side in a game of?

There were no squirrels on Nantucket Island, Massachusetts until what year?

This dry, warm wind flows eastward down the slopes of the Rocky Mountains?

This is required to make all electric things work?

This is the main food of the blue whale?