Atonement is the substitution of something else to take our sins away. The word however is only found once in the KJV New Testament. Where is it found?

It is found in the book of Romans specifically Chapter 5.

Source:

Romans 5:11

Who actually buried Jesus after his crucifixation?

Joseph of Arimathaea appears in all four of the Gospels. He went to Pilate and asked for the body of Jesus. In the Gospel of John, Nicodemus also assists him.

Source:

Matthew 27:57-60, Mark 15:43-46, Luke 23:50-53, John 19:38-42

Jesus was unable to carry his cross. Who did the Roman Soldiers force to carry it?

Simon of Cryene carried the cross for Jesus. Cyrene is located in present day Libya.

Source:

Matthew 27:32, Mark 15:21

In physical distance, how far is it from Bethany to Jerusalem?

Bethany is 15 Furlongs from Jerusalem, approximately 1 7/8 miles or 3 km.

Source:

John 11:18

Where did Jesus stay during the first Holy week?

He preached in Jerusalem but he stayed in Bethany.

Source:

Matthew 21:17, Mark 11:11