What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

When can we add 2 to 11 and get 1 as the correct answer?

Can you decipher the two rows to find the hidden word?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

If six children and two dogs were under an umbrella, how come none of them got wet?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months