'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

In the image below, can you find the value of an angle(y)

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

Which alphabet letter is a question?

What type of tree can I carry in my hand?

On a bright sunny day, two fathers took their son fishing in the lake. Each man and son were able to catch one fish. When they returned to their camp, there were only three fishes in the basket. What happened?

PS: None of the fish were eaten, lost, or thrown back.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?