Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Replace the question mark in the picture below.

Count the Triangle in the figure given below:

What part of the chicken has the most feathers?

Which is heavier: a ton of bricks or a ton of feathers?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Can you find the missing piece of the Porsche?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?