(1.)* * * There are 25 situations (all possibilities can be simply expressed in a table).

(2) The probability that the product is singular is 25/6 and the probability that the product is even is 25/9.

(3) I think this game is unfair, because there are 24 kinds of numbers whose product is greater than 24, and only 12 kinds whose product is less than 24, and there are two kinds of repetitions, so it is unfair.

(4) Mingming and Liangliang play cards at the same time. If the sum is greater than 1 1 and less than 1 1, it is repeated.