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

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

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?

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

What Am I?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

If a wheel has 54 spokes, how many spaces are there between the spokes?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

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?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?