You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

Name a key which is hardest to turn.

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

When we see 2 but call 10?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

What word begins and ends with an E, but has only one letter?