Answer:
I hold two people together but touch only one.
I climb higher as I get hotter. I can never escape from my crystal cage.
What has roots that nobody sees and is taller than trees. Up up up it goes and yet never grows?
Although I am still, in families I run. I continue to live on in a living one. As one continues to draw breath, I will not rust. However, when one stops drawing breath, I will become mere dust. What am I?
I am a ship that can be made to ride the greatest waves. I am not built by objects but built by minds.
What language does a billboard speak?