Can you replace the question mark with the correct number in the below table sequence?

When it is alive we sing, when it is dead we clap our hands. What is it?

Why is it very easy to weigh a fish?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

what's the probability of getting a king or a queen from a pack of 52 cards?

Find the next number in the series.
1 10 24 43 67 ?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

What can go up a chimney down, but can’t go down a chimney up?