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?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

How can you leave a room with two legs and return with six legs?

When it's bad luck to meet a black cat?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

Our product and our sum always give the same answer. Who are we?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?