Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

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?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

Why do Chinese men eat more rice than Japanese men do ?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

What number comes next in the series?

5 15 5 18 5 24 14 20 _