What has one letter and starts with an E?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

Why 1729 is a magic number? Answer Logically.

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

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)?

What can go up a chimney down, but can't go down a chimney up?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Readers with high attention to detail can spot the mistake in the stack of shoes in 5 seconds. Are you one of them? Test your visual skills now!

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

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?