Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

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

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Give it food and it will live; give it water and it will die.

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Can you decipher the below rebus?

PBLUESAISNUERSES

what does the below rebus mean?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?