Which is the smallest number that you can write using all the vowels exactly once?

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

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

What is the longest word in the dictionary?

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

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

I know a nine-letter word having only one vowel.
Do you ?