A maths symbol is hidden in the below Bar Graph. Can you decipher it?

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 does this rebus means ?

Guess the hidden movie name?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

You can move only two matchsticks in the given picture. What is the highest number you can form by doing it?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

What question can you never answer yes to?

What happened when the wheel was invented?

What is the word or phrase below?
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