A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Can you solve below mathematical equation?

2^1234 - 2^1233

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?