Can you find out the total number of triangles in the given figure?

What is the fastest way to double your money?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Can you find the hidden animal in the picture below?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

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?

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?