What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

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?

Can you make four (4) nines (9) equal 100?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

A sundial has the fewest moving parts of any timepiece. Which has the most?

How do you go from 98 to 720 using just one letter?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Be active and find the killer in the picture Riddle below.

What does this simple rebus mean?