I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

O_er_t_o_

Complete the missing letters of the given word.

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.

But do you know how many of these numbers are prime?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?