I’m tall when I’m young, and I’m short when I’m old. What am I?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

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?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

What does the below image rebus riddle means ?

Can you solve the below tricky visual equation?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Take one out and scratch my head, I am now black but once was red. What am I?