Fifty Challenging Problems in Probability

My interest is to deepen my knowledge of probability in order for me to be confident in teaching the concept successfully to all of my students. I need to be able to develop knowledge of probabiity in 8-10 years old of all mathematical and linguistic abilities. The students at the top of ,y class deserve to work on more stimulating material than is provided by the standard textbook and I should be ablt to write challenges then guide and assesss these students to think mathematically to solve the challenges. In addition, the laws of probablity seem to make some people a living. I would like to understand how this is achieved. cheers

Just for fun.