I have eight fingers and two thumbs but I do not live. What Am I?

How do you go from 98 to 720 using just one letter?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

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?

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

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

Can you solve the below tricky visual equation?

Count the number of triangles in the picture below: