John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

Which is heavier: a ton of bricks or a ton of feathers?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

What demands an answer, but asks no questions

Who is that with a neck and no head, two arms and no hands? What is it?