Please indicate which type of orders you should place and example how the order will be executed in each of the following examples:

1. You want to buy shares of intel to diversify your portfolio. You believe the share price is approximately at the fair value, and you want the trade done quickly and cheaply.
2. You want to buy shares of Intel but believe that the current stock price is too high given the firms prospects. If the shares could be obtained at a price 5% lower than the current value, you would like to purchase shares for your portfolio.
3. You plan to purchase a condominium sometime in the next month or so and will sell your shares of Intel to provide the funds for your down payment. While you believe that Intel share price is going to rise over the next few weeks, if you are wrong and the share price drops suddenly, you will not be able to afford the purchase. Therefore, you want to hold on to the shares for as long as possible but still protect yourself against the risk of a big loss.

please help me.