Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

What is both possible and impossible at the same time?

John was drowned by he was not wet. How?

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

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

Find the Goldfish below the given Image.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?