I want to find an app that will generate a random number with parameters that I give it, i.e. from 1 to 43, which will choose the next student to answer the question. I also need a timer with some kind of graphics, preferably one that has some kind of visual count down feature to let students know how much time they have left. Ideal if both of these can fit onto a PowerPoint slide, or Impress slide. Any ideas? searching get me absolutely no where.