Find the number of squares in the below picture

What does this rebus means ?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Chhote se Chintu Miyan,
Lambi si Pooch.
Jahan Jaye Chintu Miyan,
Wahan Jaye Pooch.

छोटे से चींटू मियाँ,
लंबी सी पूंछ।
जहाँ जाये चींटू मियाँ,
वहाँ जाये पूंछ।

Bolo kya?

You can see three almost identical images below. Can you spot the odd one out from them?

You can see it everyday, But cannot touch it at will. What is it?

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