Cristina was born in 1888. She just had her 30th birthday today how did that happen?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Can you fill the blank with the correct number?

6 30 870 756030 _____

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

There is a place where if I stand up straight, I will still be considered sideways.

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

What is the riddle which can be asked all day with a different correct answer each time.

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?