How is the moon similar to a dollar?

What does below pictogram mean?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

Can you count the number of triangles in the given figure?

When it's bad luck to meet a black cat?

What has 13 hearts but no other organs?

What has many teeth, but cannot bite?

Which is the smallest number that you can write using all the vowels exactly once?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Out of four images which one is the odd one out?