What was the day of the week on 17th June, 1998?

What was the day of the week on 6th June, 2002?

It was Sunday on Jan 1, 2006. What was the day of the week on Jan 1, 2010?

It was Sunday on January 1, 2006. What was the day of the week on January 1, 2010?

If August 15, 2023 was a Tuesday, what day of the week was August 15, 2024?

January 1, 2008 is Tuesday. What day of the week lies on January 1, 2009 ?