What do you think with the below Picture ?

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

I am lying and I always lie. Tell me whether I am lying or telling the truth.

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Buy me, smell me or deliver me, I do not change.

Who am I?

Can anyone tell me a word in the English dictionary which has a silent 'z'?