If I understand your question correctly then you have approximately a 6% chance of guessing the first event correctly. To guess 2 events correctly in a row then you multiple the two probabilities together ie 6% * 6%. So to calculate 10 events you simply do .

To work out how many guesses each will take then you can do

If it takes you 1 second to make 100,000 guesses then;

This will give you the number of seconds to correctly guess the 10 events in a row given a 6% probability of guessing each event, with 100,000 guess per second.