Answer:
Before Mount Everest was discovered what was the highest mountain on Earth?
If you break me, I'll not stop working. If you can touch me, my work is done. What am I?
What is the word that even in plain sight remains hidden?
I always murmur but never talk. Always run but never walk. I have a bed but never sleep, have a mouth but never speak. What am I?
What type of dress can never be worn?
What language does a billboard speak?