What English word has three consecutive double letters?

It belongs to you, but other people use it more than you do. What is it?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

What is the Surname of Barbie Doll?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

Can you find a five letter word that is left with only two letters if one is removed?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?