What does this Rebus Picture means ?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

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

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

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?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

What has hands, but can’t clap?