Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

What can you deduce from the following BrainBat?

CRY
LMKI

Which is faster, Heat or Cold ? Explain.

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

There was a strange boy who was born before his father. How can this be possible?

Name a key which is hardest to turn.

Move four matchsticks to the below square to form three squares?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.