Hello. I'm very grateful for your help and will appreciate some more.

1)Are the sentences correct:
a}The team is conducting an experiment next week.
b)The team will be conducting an experiment next week.
c)He is giving a lecture at 5 next Monday.
d)He will be giving a lecture at five next Monday.
2)Is it possible to say:"The team will conduct an experiment next week", "He will give a lecture at 5 next week"? If yes, is the meaning different from the above sentences?
3)Is the sentence possible: "On March 1, 2013 the term of the dictator's rule will be (will have been?) twenty-five years"?
4)Which is correct, "See you at 5 today" or "See you today at 5"?
Thank you very much.

1. All sentences are correct.

2. These sentences are fine, too -- and the meaning is similar, yes.

3. Better: On March 1, 2013, the dictator will have ruled for twenty-five years.
(Notice the comma after 2013 as well as before it.)

4. Both are correct.