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

How can one talk without saying a single word?

Solve below rebus puzzle?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Make a sentence consisting of three words that have the whole alphabet.

Take one out and scratch my head, I am now black but once was red. What am I?

Find the last number in the series below:

voN luJ yaM raM ---