A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

What can you see in the middle of March and April that you can never see in any other month?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

Why did the Girl throw the butter out of the window?

What word begins and ends with an E, but has only one letter?

Can you count the number of squares in the given picture?

If an electric train is travelling south, then which way is the smoke going?

What is red and smells like blue paint?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?