Mr. Buttons was all set to go to the village of Buttonland to meet his friend. So, he packed his bags and left for the village at 5 in the morning. Upon travelling on a road for miles, he came across a point where the road diverged into two. He was confused on which road to take. He gazed around and he saw two owls sitting on a branch. He thought he could ask for directions for the village from the two owls. So he went to the tree. There he saw a sign which read, "One owl always lies, and one is always truthful. They both fly away if you ask them more than 1 question."
Mr. Buttons was caught in the dilemma of what to ask? And from which owl to ask, since he only had one question. What should Mr. Buttons ask?

What number when divided in half becomes zero?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Where do you go to learn how to make ice cream?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?