1st Q: You need to list/write down how many times you enter and exit the UK. Month plus year will do.
2nd Q: You need to write down the countries you have visited in the last 10 years along with the dates of each.
Example:
Q1: march-june 2012 UK Study 3 months
Q2: july 2009-11 Malaysia tourist 2 years
Destination they are asking so its better to provide the countries.