If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

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

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

What does this Rebus Picture means ?

What is red and smells like blue paint?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?