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

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

I have no life, but I can die. What am I?

What does it mean?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

You can hear me, but you can't touch or see me.

What am I?

If it took eight men ten hours to build a wall, how long would it take four men to build it?