What has one letter and starts with an E?

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

O_er_t_o_

Complete the missing letters of the given word.

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?