Find the hidden tiger in the given optical illusion ?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

The centre of the third figure is empty. What digit should fit inside?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

What is the fastest way to double your money?

Count the Triangle in the figure given below:

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?