John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

Which Travels Faster? Solve below famous picture riddle:

What begins with T, ends with T, and has T in it?

Which is the correct shadow of the bird?

Can you find out the remainder when 3^300 is divided by 5?