What is so fragile that saying its name breaks it?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

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?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

Give it food and it will live; give it water and it will die.

I’m tall when I’m young, and I’m short when I’m old. What am I?

In the image given, you can find several triangles. Can you count them all?

In the picture given below, can you find out which digit will take place of the question mark?

What kind of band never plays music?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135