In the 28 year stretch starting in 1984 and ending in 2011, October 25 fell on a Monday in the following years:
1993
1999
2004
2010
For further such years, add 28 years to these.
The Gregorian calendar repeats every 400 years. In 56 years of every 400-year period, the 25th of October falls on a Monday. That's an average of 14 years per century.
From now until the end of the 21st century, the 25th of October will be on a Monday in 2021, 2027, 2032, 2038, 2049, 2055, 2060, 2066, 2077, 2083, 2088, 2094 and 2100.
October 2nd 2006 was a Monday.
It was a Wednesday.
As of 2011, the next time October 3 will fall on a Monday is in 2016.
For the rest of the century the 1st of October will be on a Monday in 2018, 2029, 2035, 2040, 2046, 2057, 2063, 2068, 2074, 2085, 2091 and 2096.
Whenever the 1st of a month is a Monday, the 25th of the same month is a Thursday.
October 13 1969 was a Monday.
October 8, 1990 fell on a Monday.
As of 2011, October 1 will next fall on Monday in 2012.
It can be any day
October 25, 1988 was a Tuesday.