I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Take away the whole and some still remain. What is it?

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

Seek and Puzzle: Only the Sharpest Eyes Can Spot the Hidden Star in 10 Seconds

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

Before Mount Everest was discovered, what was the highest mountain in the world?

What is the largest number you can write with just 3 digits?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

There are three cows, two dogs, and one cat: How many legs do you have?

I have Rs.50 and I spend it in the way as below.