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Complete the missing letters of the given word.

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

what does this below rebus represent identXQQQQQME

What has many keys but can’t open a single lock?

What number should come in place of the question mark below?

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?

A man dies of old age on his 25 birthday. How is this possible?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Rumel, A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note:

710 57735 34 5508 51 7718

Currently, there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?