Find the missing number in the image below.

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

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.

What English word has three consecutive double letters?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

I look at you, you look at me I raise my right, you raise your left. What am I?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

2, 3, 5, 9, 17, _ What is the next number in the sequence?