If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

Which alphabet is a part of our body?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

Which is faster, Heat or Cold ? Explain.

If an electric train is travelling south, then which way is the smoke going?

What does below pictogram mean?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

What is the next number?

77, 49, 36, 18 ?

What is the next shape from answers A, B, C, and D figure?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?