Your mother is 105 and self sufficient?? God bless her! You're swimming in a most amazing gene pool.
Reminds me of the golfer who needed a caddy one day, but the only one available was 100 years old. GOlfer said, "Are you sure you can see where the ball lands?" Caddy says, "My eyesight is perfect!" So the golfer tees off, and says to the caddy, "Did you see where it went?" Caddy says, "Of course, I told you my eyesight is perfect." Golfer says, "Where did it land?"
caddy says, "I don't remember."