Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What can you serve, but never eat?

What makes this number unique: 8,549,176,320?

Name a key which is hardest to turn.

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

What does below rebus means ?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Which is Odd One Out and why?

4377

3954

9862

8454

9831