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

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

I am the fastest animal but cannot climb the tree. What am I?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Spot what is wrong here in below Picture?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?