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

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

How many sides does a circle have?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

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

What Am I?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. 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?

Which is the correct shadow of the bird?

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?