Which wheel of car does not rotate when you turn your car right?

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.

Out of the nine cats that you can see in the picture, there are only two that are completely identical. Can you find them out?

Prove that the below maths equation is true.

8 + 8 = 91

What's the only room from which no one can enter or leave

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What is the last thing you take off before bed?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

If a wheel has 54 spokes, how many spaces are there between the spokes?