Which Burger Is Different in below image?

What has one letter and starts with an E?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

What jumps when it walks and sits when it stands?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?