What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Can you identify the hidden rebus in the image below?

What does this Rebus Picture mean?

Move three sticks of the spiral below to form a square.

On a beautiful Sunday morning, You ordered a hot tea to your hotel room and suddenly you remember an important thing that needed to be done right now will take around 3 minutes to complete.
Like most people you like your tea to be hot while drinking so, when should you pour cream in the tea?
1. straight away
2. Just people, you drink the team
3. Its does not matter

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?