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

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

Solve below rebus puzzle?

What number do you get when you multiply all of the numbers on a telephone's number pad?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Find the missing number in the image below.

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.