Can you find the missing piece of the Porsche?

I’m tall when I’m young, and I’m short when I’m old. What am I?

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

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

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

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

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?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?