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?

What does below chemistry rebus means?

How many letters are in the alphabet?

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?

When it's bad luck to meet a black cat?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?