Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

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?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

Next Number in the Series,

5, 16, 49, 104, ?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

I am white when I am dirty, and black when I am clean. What am I?

How many triangles are there in the picture below?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?