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

What does a man do only once in his lifetime, but women do once a year after they are 29?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

What does this mathematical rebus means ?

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?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

Why do people go to bed?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?