1. What is the problem with Zimbabwe's presidential election results?

2. How long has it taken to announce the outcome of all of Zimbabwe's previous elections?

3. How has the head of the Electoral Commission explained the delay in announcing the winner of the election?

4. What do critics of Mr. Mugabe say about the legitimacy of previous elections?

5. What makes it difficult for Mr. Mugabe to fix this election?

6. What will happen if Mr. Mugabe fails to win 50% of the vote in the presidential election?