One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Count the number of lines in the image below ?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What does this mathematical rebus means ?

Forwards I am heavy, backward I am not. What am I?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

By moving just one matchstick, you need to make the below statement true. Can you do it?

When it's bad luck to meet a black cat?

You Are Highly Attentive If You Can Spot A Hat In This Bathroom In 9 Seconds!