If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

You can see three almost identical images below. Can you spot the odd one out from them?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?