When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Which five letter word can be added at the end of below word to form a
valid word?

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"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

Guess the hidden movie name?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?