What is the next letter in this sequence:
E H L O S ==?==
Hint: This is just a sequence of letters.
Skip 2 and then 3 letters alternately.
You want to send a valuable object to a friend.
You have a box which is more than large enough to contain the object.
You each have several locks with keys, but not keys to each other's locks.
The box has a locking ring which is large enough to have many locks attached.
You cannot send a key in an unlocked box, since it might be copied.
How do you do it?
Hint: Just two locks are required.
Attach a lock to the ring.
Send it to her.
She attaches her own lock and sends it back.
You remove your lock and send it back to her.
She removes her lock.
What are the seven deadly sins?
Answer: Anger, covetousness (greed), envy, gluttony, lust, pride, sloth.
What are the next two letters in this sequence:
O T T F F S S E ==?== ==?==
Hint: A very common sequence.