I make two people out of one. What am I?

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?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

How many times can you subtract the number 5 from 25?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

Remove two matchsticks to make the below equation correct.

Can you fill the blank with the correct number?

6 30 870 756030 _____

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Can you quickly find which two matchstick figures are identical?

All of you like to eat me. I am a five-lettered word. Remove the first two and I turn into an infamous animal. Remove just the first and I become a heinous crime. Remove the first and the last and you can groove on me.

Can you guess who am I?