Count the number of lines in the image below ?

If an electric train is travelling south, then which way is the smoke going?

Which Burger Is Different in below image?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Rearrange the letters in "new door" to make one word.

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Who is that with a neck and no head, two arms and no hands? What is it?

I am lying and I always lie. Tell me whether I am lying or telling the truth.