(1) The story of creation in seven days as recorded in Genesis 1.
Should we take this as being literally true? If so how long ago did it all take place?
Unless there is no omnipotent God it should be taken literally. No one know how long ago it took place.
Yes, God prepared the earth in 6 time-periods called days in Genesis 1. These are not 24-hour periods, IMO, but long time periods lasting at least thousands of years.
Not true. Whild the word for day, can mean an indefinite period of time, when it is use with a number it is always a 24 hour period.
After each creative "day", the record says; 'And there was evening and there was morning, a first day, second day, etc' This obviously is not a 24 hour period. Of the entire creative epoch, Genesis 2:4 states; "This is a history of the heavens and the earth in the time they were created, in the day that Jehovah God made earth and heaven." Thus "day" is used in Genesis to refer to time periods other than 24 hours.
Not always as I have just explained to you. Let me give you another reason to accept 24 hours. Plant lied was created on the third day. The sun was not created until the fourth day. Plants can;'t live thousands of years without sun.
You Are making progress.
(3) The story of Noah building an Ark and the great flood as recorded in Genesis 6 - 9. Did this all actually happen?
Yes, the Flood of Noah's day is historical fact, IMO. Again, Jesus Christ spoke of the flood as real, and a warning that God will not tolerate wickedness indefinitely. (Luke 17:25-27)
2 out o f 3 ain't bad but why not bat 1000 and accept a 24 hour day?