How can one talk without saying a single word?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

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

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

Can you count the number of squares in the given picture?

Rearrange the letters in "new door" to make one word.

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

All Marigolds are flowers.
Few Flowers are used to make colors.
Therefore, some Marigold are used to make colors.

True Or False?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

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