When 99 is considered higher than 100?

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?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

what does the below math rebus puzzle mean?

John and Jill are madly in love with each other. To remind Jill of his pure love, John wants to send her a ring by post but in their country where burglary is quite prominent, any package that is not locked comes under the risk of being stolen for the contents.

John and Jill possess many padlocks but neither one of them has the other key.

Can you find a way John can send the ring to Jill safely?

What is the last thing you take off before bed?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

Decode below rebus
D
N
A
T
S , D