what does the below math rebus puzzle mean?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

What is so fragile that saying its name breaks it?

Find the number of squares in the below-given picture.

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

Find the next number in the series below

21 32 54 87 131 ?

Out of four images which one is the odd one out?