4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

What do you think with the below Picture ?

What four weights can be used to balance from 1 to 30 pounds?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Can you spot the hidden girl in the picture below?