Do the following sentences say the same thing?
Yes, they are both different.
Opinions are different.

1

Do the following sentences say the same thing?
A dog lies on his back on a wooden floor.
A dog is laying on the floor.

4

Do the following sentences say the same thing?
Plane crash in Ghana kills at least 10
Plane Crash in Ghana: How the international media reported it

2

Do the following sentences say the same thing?
Yahoo agrees to buy Tumblr for $1.1 billion cash
Yahoo to Buy Tumblr for $1.1 Billion
5