Can you write down eight eights so that they add up to one thousand?

Which is faster, Heat or Cold ? Explain.

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

What does it mean?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.