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?

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

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

What can you hold in your right hand, but never in your left hand?

You need to arrange three 7 and mathematical symbols to form number 1?

How many words can a pen with half refill write?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?