1. If 10 coins are tossed, what is the probability of 2 heads. (atleast 2 heads and exactly 2 heads)

2. Take 1m stick, cut into 5 pieces with 4 strikes, what is the probability that they could form a regular pentagon.

3. Cut a circle into 8 pieces of equal area using 3 lines.

4. What is you position in a race, if you've crossed the last one?

5. Represent your birth year as (a^b + b^a )

6. The probability of a bus crossing a bus stop in next 20 min is 0.9, what is the probability that it crosses the stop in next 5min.

HR:

1. Compare yourself with an animal, which one are you and why?

2. Compare yourself with a color, which one are you and why?