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

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

Can you fill the blank with the correct number?

6 30 870 756030 _____

By what process could you make a 'Tea-Table' into food?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

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.

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Which word does the below Plexor means ?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?