Replace the question mark with the correct number in below Picture:

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

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?

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.

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

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?