Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Can you fill the blank with the correct number?

6 30 870 756030 _____

There are 100 bulbs in a room. 100 strangers have been accumulated in the adjacent room. The first one goes and lights up every bulb. The second one goes and switches off all the even-numbered bulbs - second, fourth, sixth... and so on. The third one goes and reverses the current position of every third bulb (third, sixth, ninth? and so on.) i.e. if the bulb is lit, he switches it off and if the bulb is off, he switches it on. All the 100 strangers progress similarly.

After the last person has done what he wanted, which bulbs will be lit and which ones will be switched off?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Who are the happiest people in IPL match?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?