Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

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

I’m tall when I’m young, and I’m short when I’m old. What am I?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Spot the cat in the picture below