The host of a game show, offers the guest a choice of three doors. Behind one is a 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?

What does below chemistry rebus means?

You can see it everyday, But cannot touch it at will. What is it?

I travel all around the world but always stay in the corner. What am I?

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

What is it?

How many triangles can you count in the figure given?

At the local model boat club, four friends were talking about their boats.

There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.

Alan didn't have a yellow boat. Brian didn't have a red boat but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.

Can you work out which friend had which coloured boats?

How many triangles are there on the puzzle below?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.