If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

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

Can you find the number?

What happened when the wheel was invented?

What is the below Rebus indicate?

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.