What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

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?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

Can you divide the below-given shape into four equal and identical pieces?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

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

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

What is the next shape from answers A, B, C, and D figure?