What number comes next in the series?

5 15 5 18 5 24 14 20 _

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

who is silent in the parliament?

Solve the mathematical equation in the picture below.

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

Can you Find and name the hidden bird in the picture below ?

What goes through cities and fields, but never moves?

Replace the question mark with the number below given a simple math problem.

What is full of holes but still holds water?

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.