Things to look up in a Strong's Concordance

Matthew 28:20 ESV
ASV says, "... end of the world."
ESV says, "... end of the age."

Genesis 4:22 ESV
ASV says, "And Zillah, she also bare Tubal-cain, the forger of every cutting instrument of brass and iron:..."
ESV says, "Zillah also bore Tubal-cain; he was the forger of all instruments of bronze and iron."

Genesis 5:2 ESV
ASV says, "male and female created he them, and blessed them, and called their name Adam, in the day when they were created."
ESV says, "Male and female he created them, and he blessed them and named them Man [1] when they were created." Footnote 1 says, "Hebrew adam." I've heard before that the Hebrew word that is translated to Adam means man. So is the difference in usage, or in the translators personal opinion? I can see where it could be usage in this case, since it says God named them Adam or Man. Especially since it already stated previously that He allowed Adam to name Eve, and he first called her the Hebrew word for woman, which I think is ishshah (while man is ish, if I remember right). And then later he called her Eve, meaning the mother of all living. So Eve was called woman and Eve. So it would make sense that Adam would be called both man and Adam, and that God would call them both man, meaning what we think of today as mankind.

Genesis 5:29 ESV
ASV says, "shall comfort us in our work and in the toil of our hands."
ESV says, "shall bring us relief [4] from our work and from the painful toil of our hands." Footnote 4 says, "Noah sounds like the Hebrew for rest."
"Comfort us in our work" and "bring us relief from our work"... the same?
"Comfort us... in the toil of our hands" and "bring us relief... from the painful toil of our hands"... the same?
If the Hebrew word that translates to Noah really does mean rest, then the ESV could be more clear in the true meaning of that scripture than the ASV.

Genesis 5:32 ESV
This is worded differently than the other scriptures talking about when someone fathered a son. So were Shem, Ham, and Japheth triplets? Or did Noah have them seperately, starting at about 500 years old?