Which is the smallest number that you can write using all the vowels exactly once?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

Look at the picture and find out which square is not linked with any of the other squares.

Replace the question mark with the correct number in below Picture:

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

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

Can you find the key in the picture below?

Spot 5 differences in two Christmas tree below:

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