If you toss a coin 6 times and it comes down heads on each occasion. Can you say that the probability of getting a head is 1? Given reasons.

No, if let we toss a coin, then we get head or tail, both are equally likely events. So, probability is 1/4 if we toss a coin 6 times, then probability will be same in each case. So, the probability of getting a head is not 1.