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

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

Find the value of "?" in the ball picture Riddle below:

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?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Solve the mathematical equation in the picture below.

Find the last number in the series below:

voN luJ yaM raM ---